Term
(T/F) The outer membrane for G+ and the cell membrane for G- act as major surface antigens. |
|
Definition
FALSE: they DO act a major surface antigens BUT the outer mb for G- and the cell membrane for G+ |
|
|
Term
Are endotoxins heat stable? |
|
Definition
yes, stable at 100C for 1 hr. |
|
|
Term
Are endotoxins secreted from cells? |
|
Definition
|
|
Term
Are endotoxins used as antigens in vaccines? |
|
Definition
no, they don't produce protective immune response |
|
|
Term
Are exotoxins heat stable? |
|
Definition
no, destroyed rapidly at 60C (exception: Staphylococcal enterotoxin) |
|
|
Term
Are exotoxins secreted from cells? |
|
Definition
|
|
Term
Are exotoxins used as antigens in vaccines? |
|
Definition
Yes, TOXOIDS are used as vaccines |
|
|
Term
Describe the chemical composition of peptidoglycan. |
|
Definition
Sugar backbone with crosslinked peptide side chains. |
|
|
Term
Describe the major components of a G- cell wall. |
|
Definition
inner and outer lipid bilayer membranes - thin layer of peptidoglycan - periplasmic space - contains lipopolysaccharide, lipoprotein and phospholipid |
|
|
Term
Describe the major components of a G+ cell wall. |
|
Definition
one lipid bilayer membrane - thick layer of peptidoglycan - contains teichoic acid. |
|
|
Term
Describe the process of conjugation. |
|
Definition
DNA transfer from one bacterium to another. |
|
|
Term
Describe the process of transduction. |
|
Definition
DNA transfer by a virus from one cell to another |
|
|
Term
Describe the process of transformation. |
|
Definition
purified DNA is taken up by a cell |
|
|
Term
Does endotoxin induce and antigenic response? |
|
Definition
|
|
Term
Does exotoxin induce and antigenic response? |
|
Definition
Yes, induces high-titer antibodies called antitoxins |
|
|
Term
Give two general functions of peptidoglycan |
|
Definition
Gives rigid support - protects against osmotic pressure |
|
|
Term
How are Group A and Group B Strep primarily differentiated? |
|
Definition
Group A are Bacitracin sensitive - Group B are Bacitracin resistant |
|
|
Term
How are the pathogenic Neisseria species differentiated? |
|
Definition
on the basis of sugar fermentation |
|
|
Term
How are the species of Streptococcus primarily differentiated? |
|
Definition
on the basis of their HEMOLYTIC capabilities |
|
|
Term
List the four phases of the bacterial growth curve. |
|
Definition
Lag phase - log (exponential) phase - stationary phase - death phase |
|
|
Term
Name 2 G- rods that are considered slow lactose fermenters. |
|
Definition
|
|
Term
Name 3 G- rods that are considered fast lactose fermenters. |
|
Definition
1) Klebsiella 2) E. coli 3) Enterobacter |
|
|
Term
Name 3 G- rods which are lactose nonfermenters and Oxidase(-)? |
|
Definition
Shigella, Salmonella, Proteus |
|
|
Term
Name 4 bacteria that use IgA protease to colonize mucosal surfaces. |
|
Definition
1) Strep. pneumoniae 2) Neisseria meningitidis 3) Neisseria gonorrhea 4) H. flu |
|
|
Term
Name 4 genus of bacteria that are G- 'coccoid' rods. |
|
Definition
1) H. flu 2) Pasteruella 3) Brucella 4) Bordetella pertussis |
|
|
Term
Name 6 bacteria that don't Gram's stain well? |
|
Definition
Treponema - Rickettsia - Mycobacteria - Mycoplasma - Legionella pneumophila - Chlamydia |
|
|
Term
Name four genus of bacteria that are G+ rods. |
|
Definition
1) Clostridium (an anaerobe) 2) Coynebacterium 3) Listeria 4) Bacillus |
|
|
Term
Name seven G+ bacteria species that make exotoxins. |
|
Definition
1) Corynebacterium diphtheriae 2) Clostridium tetani 3) Clostridium botulinum 4) Clostridium perfringens 5) Bacillus anthracis 6) Staph. aureus 7) Strep. pyogenes |
|
|
Term
Name three diseases caused by exotoxins. |
|
Definition
Tetanus - botulism - diptheria |
|
|
Term
Name three G- bacteria species that make exotoxins. |
|
Definition
1) E. coli 2) Vibrio cholerae 3) Bordetella pertussis |
|
|
Term
Name three Lactose fermenting enterics. |
|
Definition
Eschericia, Klebsiella, Enterobacter |
|
|
Term
Name two diseases caused by endotoxins. |
|
Definition
Meningococcemia - sepsis by G(-) rods |
|
|
Term
Name two type of Strep that exhibit alpha hemolysis? |
|
Definition
S. pneumoniae - Viridans strep. (e.g. S. mutans) |
|
|
Term
Name two types of Strep. that are non-hemolytic (gamma hemolysis). |
|
Definition
Enterococcus (E. faecalis) and Peptostreptococcus (anaerobe) |
|
|
Term
Name two types of Strep. that exhibit beta hemolysis. |
|
Definition
Group A Strep. (GAS) and Group B Strep. (GBS) |
|
|
Term
Teichoic acid induces what two cytokines? |
|
Definition
|
|
Term
What are the effects of erythrogenic toxin? |
|
Definition
it is a superantigen - it causes rash of Scarlet fever |
|
|
Term
What are the effects of streptolysin O ? |
|
Definition
it is a hemolysin - it is the antigen for ASO-antibody found in rheumatic fever |
|
|
Term
What are the effects of the exotoxin secreted by Bacillus anthracis? (1) |
|
Definition
one toxin in the toxin complex is an adenylate cyclase |
|
|
Term
What are the effects of the exotoxin secreted by Bordetella pertussis? (3) |
|
Definition
Stimulates adenylate cyclase by ADP ribosylation - causes whooping cough - inhibits chemokine receptor, causing lymphocytosis |
|
|
Term
What are the effects of the exotoxin secreted by Clostridium botulinum? |
|
Definition
blocks release of acetylcholine: causes anticholenergic symptoms, CNS paralysis; can cause 'floppy baby' |
|
|
Term
What are the effects of the exotoxin secreted by Clostridium perfringens? |
|
Definition
alpha toxin is a lecithinase - causes gas gangrene - get a double zone of hemolysis on blood agar |
|
|
Term
What are the effects of the exotoxin secreted by Clostridium tetani? |
|
Definition
blocks release of the inhibitory NT glycine; causes 'lockjaw' |
|
|
Term
What are the effects of the exotoxin secreted by Corynebacterium diphtheria?(3) |
|
Definition
1) inactivates EF-2 by ADP ribosylation 2) pharyngitis 3) 'pseudomembrane' in throat |
|
|
Term
What are the effects of the exotoxin secreted by E. coli? (2) |
|
Definition
this heat labile toxin stimulates adenylate cyclase by ADP ribosylation of G protein - causes watery diarrhea |
|
|
Term
What are the effects of the exotoxin secreted by Staph. aureus? |
|
Definition
superantigen; induces IL-1 and IL-2 synthesis in Toxic Shock Syndrome; also causes food poisoning |
|
|
Term
What are the effects of the exotoxin secreted by Vibro cholerae? (3) |
|
Definition
Stimulates adenylate cyclase by ADP ribosylation of G protein - increases pumping of Cl- and H2O into gut - causes voluminous rice-water diarrhea |
|
|
Term
What are the general clinical effects of endotoxin?(2) |
|
Definition
|
|
Term
What are three primary/ general effects of endotoxin (especially lipid A)? |
|
Definition
1) Acivates macrophages 2) Activates completment (alt. pathway) 3) Activates Hageman factor |
|
|
Term
What are two exotoxins secreted by Strep. pyogenes? |
|
Definition
Erythrogenic toxin and streptolysin O |
|
|
Term
What are two functions of the pilus/fimbrae? |
|
Definition
Mediate adherence of bacteria to the cell surface - sex pilus forms attachment b/t 2 bacteria during conjugation |
|
|
Term
What are two species of Gram (-) cocci and how are they differentiated? |
|
Definition
1) Neisseria memingitidis: maltose fermenter 2) Neisseria gonorrhoeae: maltose NONfementer |
|
|
Term
What bacteria produces a blue-green pigment? |
|
Definition
|
|
Term
What bacteria produces a red pigment? |
|
Definition
Serratia marcescens ('maraschino cherries are red') |
|
|
Term
What bacteria produces a yellow pigment? |
|
Definition
Staph. aureus (Aureus= gold in Latin) |
|
|
Term
What culture requirements do Fungi have? |
|
Definition
|
|
Term
What culture requirements do Lactose-fermenting enterics have? |
|
Definition
MacConkey's agar (make pink colonies) |
|
|
Term
What culture requirements does B. pertussis have? |
|
Definition
Bordet-Gengou (potato) agar |
|
|
Term
What culture requirements does C. diphtheriae have? |
|
Definition
|
|
Term
What culture requirements does H. flu have? |
|
Definition
chocolate agar with factors V (NAD) and X (hematin) |
|
|
Term
What culture requirements does Legionella pneumophia have? |
|
Definition
Charcol yeast extract agar buffered with increased iron and cysteine |
|
|
Term
What culture requirements does N. gonorrhea have? |
|
Definition
Thayer-Martin (VCN) media |
|
|
Term
What G- rod is a lactose nonfermenter and is Oxidase + ? |
|
Definition
|
|
Term
What is a function of the plasma membrane in bacterial cells. |
|
Definition
site of oxidative and transport enzymes |
|
|
Term
|
Definition
exotoxin treated with formaldehyde (or acid or heat); retains antigeniciy but looses toxicity |
|
|
Term
What is an acronym for remembering 6 bacteria that don't Gram's stain well? |
|
Definition
TRMMLC: These Rascals May Microscopically Lack Color |
|
|
Term
What is meant by alpha, beta, and gamma hemolysis? |
|
Definition
On a Blood agar plate: alpha= complete; clear - beta= partial; green - gamma= no hemolysis; red |
|
|
Term
What is the chemical composition of a glycocalix? |
|
Definition
|
|
Term
What is the chemical composition of bacterial ribosomes? |
|
Definition
RNA and protein in 30S and 50S subunits |
|
|
Term
What is the chemical composition of endotoxin? |
|
Definition
|
|
Term
What is the chemical composition of exotoxin? |
|
Definition
|
|
Term
What is the chemical composition of spores? |
|
Definition
keratin-like coat - dipicolinic acid |
|
|
Term
What is the funciton and chemical composition of the flagellum? |
|
Definition
for motility - made of protein |
|
|
Term
What is the function of a glycocalix? |
|
Definition
mediates adherence to surfaces, especially foreign surfaces (i.e. catheters) |
|
|
Term
What is the function of spores? |
|
Definition
provides resistance to dehydration, heat, and chemicals |
|
|
Term
What is the major chemical composition of the capsule? |
|
Definition
Polysaccharide (*except Bacillus anthracis, which contains D-Glutamate) |
|
|
Term
What is the major function of the capsule? |
|
Definition
|
|
Term
What is the mode of action of endotoxin? |
|
Definition
|
|
Term
What is the nature of the DNA transferred in conjugation? |
|
Definition
|
|
Term
What is the nature of the DNA transferred in transduction? |
|
Definition
Any gene in generalized transduction; only certain genes in specialized transduction |
|
|
Term
What is the nature of the DNA transferred in transformation? |
|
Definition
|
|
Term
What is the periplasm? Where is it found? |
|
Definition
the space between the inner and outer cell membranes found in G(-) bacteria. |
|
|
Term
What is the primary test to subcatergorize G- rods? |
|
Definition
are they Lactose Fermenters? |
|
|
Term
What is the source of endotoxins? |
|
Definition
cell wall of most G- bacteria (think N-dotoxin=gram Negative) |
|
|
Term
What is the source of exotoxins? |
|
Definition
certain species of some G+ and G- bacteria |
|
|
Term
What is the unique chemical component of Gram (-) cell membranes? |
|
Definition
|
|
Term
What is the unique chemical component of Gram + cell membranes? |
|
Definition
|
|
Term
What is used to stain Legionella? |
|
Definition
|
|
Term
What species is Group A Strep? |
|
Definition
|
|
Term
What species is Group B Strep? |
|
Definition
|
|
Term
What stain is amyloid and gives an apple-green birefringence in polarized light? |
|
Definition
|
|
Term
What stain is used for acid fast bacteria? |
|
Definition
|
|
Term
What stain is used for Borrelia, Plasmodium, trypanosomes, and Chlamydia? |
|
Definition
|
|
Term
What stain is used for Cryptococcus neoformans? |
|
Definition
|
|
Term
What stains gylcogen, mucopolysaccharides and is used to diagnose Whipple's disease? |
|
Definition
PAS(periodic acid schiff) |
|
|
Term
What test distinguishes Staph. and Strep? |
|
Definition
Staph. are Catalase (+) and are in clusters - Strep. are Catalase (-) and are in chains |
|
|
Term
What test distinguishes Staph. aureus from Staph. epidermidis and Staph. saprophyticus? |
|
Definition
S. aureus is Coagulase (+) - S. epidermidis and S. saprophyticus are Coagulase(-) |
|
|
Term
What two things distinguish S. pneumoniae from Viridans Strep.? |
|
Definition
S. pneumoniae: have Capsule; Optochin Sensitive - Viridans strep: No capsule; Optochin Resistant |
|
|
Term
What type of enzymes allows certain bacteria to colonize mucosal surfaces? |
|
Definition
|
|
Term
When endotoxin activates complement, what are the secondary effects? |
|
Definition
C3a: hypotension, edema - C5a: neutrophil chemotaxis |
|
|
Term
When endotoxin activates Hageman, what are the secondary effects? |
|
Definition
|
|
Term
When endotoxin activates macrophages, what 3 cytokines are released and what are the secondary effects? |
|
Definition
IL-1--fever - TNF--fever, hemmoragic tissue necrosis - Nitic oxide--hypotension, shock |
|
|
Term
Where are the genes for endotoxin located? |
|
Definition
on the bacterial chromosome |
|
|
Term
Where are the genes for exotoxin located? |
|
Definition
on a plasmid or in a bacteriophage |
|
|
Term
Where are the spores of Clostridium botulinum found? |
|
Definition
|
|
Term
|
Definition
in the outer membrane of G (-) cell walls |
|
|
Term
Which has a higher toxicity: exotoxin or endotoxin? |
|
Definition
EXOTOXIN: fatal dose is ~1ug! (for endotoxin, fatal dose is hundreds of micrograms) |
|
|
Term
Which type of Neisseria ferment Glucose only? |
|
Definition
Gonococci (Glucose= Gonococci) |
|
|
Term
Which type of Neisseria ferment maltose and glucose? |
|
Definition
Meningococci (MaltoseGlucose= MeninGococci) |
|
|
Term
Which types of transfer can eukaryotic cells do? |
|
Definition
|
|
Term
Which types of transfer can prokaryotic cells do? |
|
Definition
all 3: conjugation, transduction, and transformation |
|
|
Term
Why don't Mycobacteria Gram's stain well? |
|
Definition
high lipid content cell wall requires acid-fast stain |
|
|
Term
Why don't Mycoplasma Gram's stain well? |
|
Definition
|
|
Term
Why don't Rickettsia, Chlamydia, and Legionella Gram's stain well? |
|
Definition
they are intracellular (Legionella is Mainly intracellular) |
|
|
Term
Why don't Treponema Gram's stain well? |
|
Definition
too thin to be visualized (use darkfield microscopy and antibody staining) |
|
|
Term
Name 5 species of bacteria that are transmitted to humans from animals. (Acronym: BBugs From Your Pet.) |
|
Definition
Borrelia burgdorferi - Brucella spp. - Francisella tularensis - Yersinia pestis - Pasteurella multocida |
|
|
Term
All Rickettsiae (except one genus) are transmitted by what type of vector? |
|
Definition
arthropod (Coxiella is atypical: transmitted by aeresol) |
|
|
Term
Are G(-) bugs resistant to Pen G? to ampicillin? to vancomycin? |
|
Definition
G- bugs are resistant to PenG but may be susceptible to pen. derivative like ampicillin. The G- outer mb inhibits entry of PenG and vancomycin |
|
|
Term
Are Strep. pneumoniae sensitve to optochin? Are Viridans strep.? |
|
Definition
Strep. pneumoniae is optochin-Sensitive - Viridans streptococci is optochin- Resistant |
|
|
Term
Are Strep. pyogenes Bacitracin-sensitive?> |
|
Definition
|
|
Term
Are Viridans strep. alpha, beta, or non-hemolytic? |
|
Definition
|
|
Term
Because of drug resistance, what in an alternate treatment combination for leprosy? |
|
Definition
rifampin with dapsone and clofazimine |
|
|
Term
Besides the rash, what other body systems are affected by Lyme disease? (3) |
|
Definition
|
|
Term
Describe lab-findings for Pseudomonas aeruginosa. |
|
Definition
Aerobic, G(-) rod. - Nonlactose fermenting - Oxidase positive - Produces pyocyanin (blue-green pigment) |
|
|
Term
Describe the disease associated with M. aviumintracellulare. |
|
Definition
often resistant to multiple drugs; causes disseminated disease in AIDS. |
|
|
Term
Describe the H. flu vaccine. When is it given? |
|
Definition
contains type b capsulare polysaccharide conjugated to diphtheria toxoid or other protein. -Given b/t 2m and 18m. |
|
|
Term
Describe the typical findings with diarrhea caused by enterotoxigenic E. coli. (3) |
|
Definition
1) Ferments lactose 2) watery diarrhea 3) no fever/ leukocytosis |
|
|
Term
Describe the typical findings with Vibro cholerae. (3) |
|
Definition
1) Comma-shaped organisms 2) rice-water stools 3) no fever/leukocytosis |
|
|
Term
Do Streptococcus pneumonia have catalase? Do Viridans Strep. have catalase? |
|
Definition
|
|
Term
Enterococci are hardier than nonenterococcal group D bacteria. What lab conditions can they grow in? |
|
Definition
6.5% NaCl (used as lab test) |
|
|
Term
Following primary infection with TB, if preallergic lymphatic or hematogenous dissemination occurs, what follows? |
|
Definition
-dormant tubercle bacilli form in several organs - REACTIVATION can occur in adult life |
|
|
Term
Following primary infection with TB, if severe bacteremia occurs, what follows? |
|
Definition
Miliary tuberculosis and possibly death |
|
|
Term
Following primary infection with TB, if the lesion heals by fibrosis, what is the result? |
|
Definition
Immunity and hypersensitivity---> tuberculin positive |
|
|
Term
Following primary infection with TB, under what conditions would the lesion likely progress to lung disease? |
|
Definition
HIV, malnutrition. This progressive lung disease can rarely lead to death. |
|
|
Term
Following primary infection with TB, what are 4 possible courses the disease could take? |
|
Definition
1) Heals by fibrosis 2) Progressive lung disease 3) Severe bacteremia 4) Preallergic lymphatic or hematogenous dissemination |
|
|
Term
Give 3 examples of obligate anaerobes. |
|
Definition
Clostridium - Bacteroides - Actinomyces |
|
|
Term
Give 3 types of infection Pseudomonas aeruginosa is commonly responsible for. |
|
Definition
1) burn wound infection 2) nosocomial pneumonia 3) pneumonia with cystic fibrosis |
|
|
Term
Give 4 examples of encapsulated bacteria. |
|
Definition
1) Strep. pneumoniae 2) Haemophilus influenza (especially b) 3) Neisseria memingitidis 4) Klebsiella pneumoniae |
|
|
Term
|
Definition
Epiglottitis -Meningitis - Otitis media -Pneumonia (haEMOPhilus) |
|
|
Term
How are Borrelia visualized? |
|
Definition
using aniline dyes (Wright's or Giemsa stain) in light microscopy |
|
|
Term
How are Mycobacteria visualized in the lab? |
|
Definition
acid-fast stain =Ziehl- Neelson |
|
|
Term
How are Treponema visualized? |
|
Definition
|
|
Term
How can secondary tuberculosis in the lung occur?(2) |
|
Definition
1) Reinfection of partially immune hypersensitized hosts (usu. adults) =exogenous source 2) Reactivation of dormant tubercle bacilli in immunocompromised or debilitated hosts =endogenous source |
|
|
Term
How can you remember that Viridans strep are resistant to optochin? |
|
Definition
they live in the mouth and are not afraid of the (opto-)CHIN |
|
|
Term
How does primary syphilis present? |
|
Definition
with a painless chancre (localized disease; 2-10 wks). |
|
|
Term
How does secondary syphilis present? |
|
Definition
disseminated disease (1-3m later) with constitutional symptoms, maculopapular rash, condylomata lata (genital lesions) |
|
|
Term
How does tertiary syphilis present? |
|
Definition
gummas (granulomas), aortitis, neurosyphilis (tabes dorsalis), Argyll-Robertson pupil |
|
|
Term
How does the bacterium cause the disease? |
|
Definition
via exotoxin encoded by beta-prophage; exotoxin inhibits protein synthesis via ADP-ribosylation of EF-2 |
|
|
Term
How does the rash with typhus differ from the rash with RMSF? |
|
Definition
typhus: maculopapillary rash BEGINS ON TRUNCK, moves peripherally -RMSF: macules progressing to petichiae BEGIN ON HANDS &FFET and move inward. |
|
|
Term
How is Brucellosis/Undulant fever transmitted? |
|
Definition
dairy products, contact with animals |
|
|
Term
How is Cellulitis transmitted? |
|
Definition
|
|
Term
How is H. flu transmitted? |
|
Definition
|
|
Term
How is Legionnaires' disease diagnosed in lab? |
|
Definition
use silver stain (doesn't Gram stain well) -culture with charcoal yeast extract with iron and cysteine |
|
|
Term
How is Legionnaires' disease transmitted? |
|
Definition
aeresol transmission from envirnomental water source habitat (NO human-to human transmission). |
|
|
Term
How is Lyme disease transmitted? |
|
Definition
Tick bite; Ixodes ticks that live of deer and mice |
|
|
Term
|
Definition
food, fingers, feces, and flies' |
|
|
Term
How is the Plague transmitted? |
|
Definition
Flea bite; rodents, especially prairie dogs |
|
|
Term
How is Tuleremia transmitted? |
|
Definition
|
|
Term
Is Bacillus anthracis G+ or G-? What is its morphology? |
|
Definition
It is a G+, spore-forming rod |
|
|
Term
Is there an animal reservoir for leprosy? |
|
Definition
Yes, armadillos in the US |
|
|
Term
List 5 findings associated with rheumatic fever. (Hint: PECCS) |
|
Definition
Polyarthritis - Erythema marginatum -Chorea - Carditis - Subcutaneous nodules |
|
|
Term
List the 'ABCDEFG' of diphtheria. |
|
Definition
ADP ribosylation -Betaprophage -Corynebacterium - Diphtheria - Elongation Factor 2 - Granules |
|
|
Term
Name 2 alpha-hemolytic bacteria. |
|
Definition
Strep. pneumoniae - Viridans streptococci |
|
|
Term
Name 2 bugs that cause diarrhea but NOT fever and leukocytosis? |
|
Definition
E. coli and Vibro cholerae |
|
|
Term
Name 2 disease processes that can be caused by enterococci. |
|
Definition
1) UTI 2) subacute endocarditis |
|
|
Term
Name 2 species of enterococci. |
|
Definition
Enterococcus faecalis - Enterococcus faecium |
|
|
Term
Name 2 symptoms of diphtheria. |
|
Definition
pseudomembraneous pharyngitis (grayish white membrane) - lymphadenopathy |
|
|
Term
Name 3 spore forming bacteria. |
|
Definition
Bacillus anthracis - Clostridium perfringens - C. tetani |
|
|
Term
Name 4 beta-hemolytic bacteria. |
|
Definition
1) Staph. aureus 2) Strep. pyogenes (GAS) 3) Strep. agalactiae (GBS) 4) Listeria monocytogenes |
|
|
Term
Name 4 lactose-fermenting enteric bacteria. |
|
Definition
Klebsiella -E. coli - Enterobacter Citrobacter (think Lactose is KEE for first three listed) |
|
|
Term
Name 4 obligate aerobic bacteria. |
|
Definition
Norcardia - Pserudomonas aeruginosa - Mycobacterium tuberculosis - Bacillus |
|
|
Term
Name 5 bugs that cause watery diarrhea. |
|
Definition
1) Vibrio cholerae 2) enterotoxigenic E. coli 3) viruses (rotavirus) 4) protozoa (Cryptosporidium) and (5) Giardia |
|
|
Term
Name 6 bugs that cause bloody diarrhea. |
|
Definition
1) Salmonella 2) Shigella 3) Campylobacter jejuni 4) enterohemorrhagic/ enteroinvasive E.coli 5) Yersinia enterocilitica 6) Entamoeba histolytica (a protozoan) |
|
|
Term
Name 7 faculatative intracellular bacteria. |
|
Definition
1) Mycobacterium 2) Brucella 3) Francisella 4) Listeria 5) Yersinia 6) Legionella 7) Salmonella |
|
|
Term
Name three genera of spirochetes. |
|
Definition
Borrelia (big size) - Leptospira -Treponema (think: BLT; B is big) |
|
|
Term
Name two lab tests used to detect syphilis? |
|
Definition
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Term
Name two non-lactose fermenting bacteria that invade intestinal mucosa and can cause bloody diarrhea. |
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Definition
|
|
Term
Name two obligate intracellular bacteria. |
|
Definition
Rickettsia and Chlamydia (Hint: 'stay inside when its Really Cold.') |
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Term
RMSF is endemic to what part of the US? |
|
Definition
the East Coast (in spite of the name) |
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|
Term
Spore are formed by certain species of what type of bacteria? |
|
Definition
Gram+ rods, usually in soil; form spores only when nutrients are limited |
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Term
T/F Chlamydia are obligate intracellular parasites that cause mucosal infections. |
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Definition
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Term
|
Definition
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|
Term
T/F Enterobacteriaceae are oxidase negative and are glucose fermenters. |
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Definition
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|
Term
T/F H. pylori infection is a risk factor for peptic ulcer and gastric carcinoma. |
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Definition
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|
Term
T/F Penicillin is not an effective treatment against Mycoplasma pneumoniae. |
|
Definition
TRUE Mycoplama are naturally resistant b/c they have no cell wall. |
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Term
T/F Pseudomonas produces both endotoxin and exotoxin. |
|
Definition
TRUE: endotoxin---> fever, shock -exotoxin--- > inactivates EF-2 |
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Term
T/F Rickettsiae are obligate intracellular parasites and need CoA and NAD. |
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Definition
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|
Term
T/F Some enterococci are resistant to PenG. |
|
Definition
FALSE: ALL enterococci are naturally resistant to Pen/ cephlosporins. |
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Term
T/F Spores have no metabolic activity. |
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Definition
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|
Term
T/F: S. aureus food poisoning is due to the ingestion of bacteria that rapidly secrete toxin once they enter the GI tract. |
|
Definition
FALSE: rapid onset of S. aureus food poisoning is due to injestion of PREFORMED toxin |
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Term
The Weil-Felix reaction usually tests positive for what two diseases? Negative for what? Cross reacts with what? |
|
Definition
Positive: typhus and RMSF - Negative: Q fever -Crossreacts: with Proteus antigen |
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|
Term
Think COFFEe for Enterobacteriaceae. What does that stand for? |
|
Definition
Capsular -O-antigen - Flagellar antigen -Ferment glucose -Enterobacteriaceae |
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|
Term
What's a pneumonic for remembering 4 obligate aerobes? |
|
Definition
Nagging Pests Must Breath (=Norcardia - Pserudomonas aeruginosa - Mycobacterium tuberculosis - Bacillus |
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|
Term
What (6) infections can Pseudomonas aeruginosa cause? |
|
Definition
burn-wound infections - Pneumonia (esp. in cystic fibrosis) -Sepsis (black skin lesions) -External Otitis (swimmer's ear) - UTI -hot tub folliculitis |
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|
Term
What 2 bugs can cause bloody diarrhea, fever, and leukocytosis, but do not ferment lactose? |
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Definition
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|
Term
What animals carry Lyme disease? |
|
Definition
The Ixodes tick transmits it. - Deer are required for tick life cycle. - Mice are important resservoirs. |
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|
Term
What anitbody class is necessary for an immune response to encapsulated bacteria? |
|
Definition
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|
Term
What are 2 disease processes caused by Viridans strep and what species are responsible? |
|
Definition
1) dental caries: Strep. mutans 2) bacterial endocarditis: Strep. sanguis |
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|
Term
What are 2 options for triple thearpy treatment of H. pylori? |
|
Definition
(1) bismuth (Pepto-Bismal), metronidazole, and tetracyclin or amoxicillin. OR (2) metronidazole, omeprazole, and clarithromycin (#2 is more expensive) |
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Term
What are 3 advantages/ differences between VDRL and FTA-ABS? |
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Definition
FTA-ABS is 1) more specific 2) positive earlier in disease 3) remains positive longer than VDRL |
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|
Term
What are 3 disease processes caused by Strep. pyogenes? |
|
Definition
1) Pyogenic--pharyngitis, cellulitis, skin infection 2) Toxigenic--scarlet fever, TSS 3) Immunologic--rheumatic fever, acute glomerulonephritis |
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|
Term
What are 4 biological false positives for VDRL? |
|
Definition
1) Viruses (mono, hepatitis) 2) Drugs 3) Rheumatic fever and rheumatic arthritis 4) Lupus and leprosy (=VDRL) |
|
|
Term
What are 4 clinical symptoms of 'walking' pneumonia? |
|
Definition
1) insidious onset 2) headache 3) nonproductive cough 4) diffuse interstitial infiltrate |
|
|
Term
What are 4 clinical symptoms of TB? |
|
Definition
1) fever 2) night sweats 3) weight loss 4) hemoptysis |
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|
Term
What are 5 areas that can be affected by extrapulmonary TB? |
|
Definition
1) CNS (parenchmal tuberculoma or meningitis) 2) Vertebral body (Pott's disease) 3) Lymphadenitis 4) Renal 5) GI |
|
|
Term
What are the culture requirement for H. flu? |
|
Definition
culture on chocolate agar with factor V (NAD) and X (hematin). [Think: 'Child has 'flu'; mom goes to five (V) and dime (X) store to buy chocolate.'] |
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|
Term
What are the lab findings with Chlamydia? |
|
Definition
cytoplasmic inclusions on Giemsa fluorescent antibodystains smear |
|
|
Term
What are the symptoms of RMSF? (3) |
|
Definition
1) rash on palms and soles (migrating to wrists, ankles, then trunck) 2) headache 3) fever |
|
|
Term
What are the three stages of Lyme disease? |
|
Definition
1) erythema chronicum migrans, flu-like symptoms 2) neurologic and cardiac manifestations 3) autoimmune migratory polyarthritis |
|
|
Term
What are the two forms of chlamydia? |
|
Definition
1) Elementary body (small, dense): Enters cell via endocytosis 2) Initial or Reticulate body: Replicates in the cell by fission |
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|
Term
What are the two forms of leprosy (or Hansen's disease)? |
|
Definition
1) lepromatous- failed cellmediated immunity, worse 2) tuberculoid- self-limited. |
|
|
Term
What are two drugs that could be used to treat 'walking' pneumonia? |
|
Definition
tetracycline or erythromycin |
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|
Term
What are two drugs that could treat Chlmydia? |
|
Definition
erythromycin or tetracycline |
|
|
Term
What are two lab findings associated with 'walking' pneumonia? |
|
Definition
1) X-ray looks worse than patient 2)High titer of cold agglutinins (IgM) |
|
|
Term
What are usually associated with pseudomembraneous colitis? |
|
Definition
Clostridium difficile; it kills enterocytes, usu. is overgrowth secondary to antibiotic use (esp. clindamycin or ampicillin) |
|
|
Term
What bacteria are G+, sporeforming, anaerobic bacilli? |
|
Definition
|
|
Term
What bacteria causes a malignant pustule (painless ulcer); black skin lesions that are vesicular papules covered by a black eschar? |
|
Definition
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|
Term
What bacteria exhibits a 'tumbling' motility, is found in unpasteurized milk, and causes meningitis in newborns? |
|
Definition
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|
Term
What bacteria is catalase(-) and bacitracin-resistant? |
|
Definition
|
|
Term
What bacteria is catalase(-) and bacitracin-sensitive? |
|
Definition
|
|
Term
What bacteria is catalase+ and coagulase+? |
|
Definition
|
|
Term
What bacteria produces alpha-toxin, a hemolytic lecithinase that causes myonecrosis or gas gangrene? |
|
Definition
|
|
Term
What bacterium causes Cellulitis? |
|
Definition
|
|
Term
What bacterium causes leprosy? |
|
Definition
|
|
Term
What bacterium causes Lyme disease? |
|
Definition
|
|
Term
What bacterium causes the Plague? |
|
Definition
|
|
Term
What bacterium causes Tularemia? |
|
Definition
|
|
Term
What bacterium causes Undulant fever? |
|
Definition
Brucella spp. (a.k.a. Brucellosis) |
|
|
Term
What bug causes atypical 'walking' pneumonia? |
|
Definition
|
|
Term
What bug causes gastroenteritis and up to 90% of duodenal ulcers? |
|
Definition
|
|
Term
What bug causes Legionnaire's disease? |
|
Definition
|
|
Term
What bug is associated with burn wound infections? |
|
Definition
|
|
Term
What bug is comma- or Sshaped and grows at 42C, and causes bloody diarrhea with fever and leukocytosis? |
|
Definition
|
|
Term
What bug that causes diarrhea is usually transmitted from pet feces (e.g. puppies)? |
|
Definition
|
|
Term
What causes tetanus? (give bacteria and disease process) |
|
Definition
Clostridium tetani: exotoxin produced blocks glycine release (inhibitory NT) from Renshaw cells in spinal cord |
|
|
Term
|
Definition
NOT H. flu -it is caused by influenza virus |
|
|
Term
What chemical is found in the core of spores? |
|
Definition
|
|
Term
What coccobacillus causes vaginosis: greenish vaginal discharge with a fishy smell; nonpainful? |
|
Definition
|
|
Term
What disease does Bordetella perussis cause? How? |
|
Definition
Whooping cough: toxin permanently disables Gprotein in respiratory mucosa (turns the 'off' off);ciliated epithelial cells are killed; mucosal cells are overactive. |
|
|
Term
What disease does Vibrio cholerae cause? How? |
|
Definition
Cholera: toxin permanently activates G-protein in intestinal mucosa (turns the 'on' on) causing rice-water diarrhea |
|
|
Term
What disease is caused by Borrelia? |
|
Definition
|
|
Term
What disease is caused by Clostridium botulinum? What pathophys. does it cause? |
|
Definition
Botulism: associated with contaminated canned food, produces a preformed, heatlabile toxin that inhibits ACh release---> flaccid paralysis. |
|
|
Term
What diseases (2) are caused by Treponema? |
|
Definition
Syphilis (T. pallidum) -yaws (T. pertenue; not and STD) |
|
|
Term
What diseases can be caused by Staph. aureus? |
|
Definition
Inflammatory disease: skin infections, organ abcess, pneumonia - Toxin mediated disease: Toxic Shock Syn., scalded skin syndrome (exfoliative toxin), rapid onset food poisoning (enterotoxins) |
|
|
Term
What do Chlamydia trachomatis serotypes A, B, and C cause? |
|
Definition
chronic infection, cause blindness in Africa (ABC= Africa / Blindness / Chronic |
|
|
Term
What do Chlamydia trachomatis serotypes D-K cause? (3) |
|
Definition
urethritis/ PID - neonatal pneumonia -neonatal conjuctivitis |
|
|
Term
What do Chlamydia trachomatis serotypes L1,L2, and L3 cause? |
|
Definition
lymphogranuloma venereum (acute lymphadentis: positive Frei test) |
|
|
Term
What do RMSF, syphilis, and coxsackievirus A infection have in common? |
|
Definition
rash on palm and sole is seen in each (coxasackievirus A =hand, foot, and mouth disease) |
|
|
Term
What does catalase do? Which bacteria have it? |
|
Definition
it degrades H2O2, an antimicrobial product of PMNs. - Staphlococci make catalase; Strep. do NOT. |
|
|
Term
What does the H-antigen represent? |
|
Definition
H: flagellar antigen, found on motile species |
|
|
Term
What does the K-antigen represent? |
|
Definition
K: capsular, relates to virulence |
|
|
Term
What does the O-antigen represent? |
|
Definition
O-antigen is the polysaccharide of endotoxin (found on all species) |
|
|
Term
What does VDRL detect? (It detects non-specific antibody that reacts with what?) |
|
Definition
detects antibody that reacts with beef cardiolipin |
|
|
Term
What drug of choice is used to treat Norcardia? Actinomyces? (Acronym: SNAP) |
|
Definition
Sulfa for Norcarida, Actinomyces gets Penicillin |
|
|
Term
What enteric bacterial infection may be prolonged with antibiotic treatment? |
|
Definition
|
|
Term
What enzyme allows H. pylori to creat an alkaline environment? |
|
Definition
urease (cleaves urea to ammonia); used in urease breath test |
|
|
Term
What family includes E. coli, Salmonella, Klebsiella, Enterobacter, Serratia, and Proteus? |
|
Definition
|
|
Term
What family of bacteria uses the O-, K-, and H-antigen nomenclature? |
|
Definition
|
|
Term
What function does the capsule serve? (2: one for the bacterium, one other) |
|
Definition
1) antiphagocytic 2) antigen in vaccines (Pneumovax, H. flu b, meningococcal vaccines) |
|
|
Term
What G+ anaerobe causes oral/facial abscesses with 'sulfur granules' that may drain through sinus tracts in skin? |
|
Definition
|
|
Term
What G+ and also weakly acid fast aorobe found in soil causes pulmonary infections in immunocompromised patients? |
|
Definition
|
|
Term
What general type of bacteria are normal flora in GI tract but pathogenic elsewhere? |
|
Definition
|
|
Term
What general type of bacteria grow pink colonies on MacConkey's agar? |
|
Definition
Lactose-fermenting enteric bacteria |
|
|
Term
What is a Ghon complex and in whom does it occur? |
|
Definition
Occurs in Primary TB (usually a child) -Ghon complex= draining Hilar nodes and Ghon focus, exudative parenchymal lesion (usu. in LOWER lobes of lung) |
|
|
Term
What is a lab diagnosis of diphtheria based on? |
|
Definition
G+ rods with metachromatic granules; grows on tellurite agar. (Coryne=club shaped) |
|
|
Term
What is a major difference between Salmonella and Shigella observable in the lab? |
|
Definition
Salmonella are motile; Shigella are nonmotile |
|
|
Term
What is a positive Quellung reaction? |
|
Definition
if encapsulated bug is present, capsule SWELLS when specific anticapsular antisera are added. |
|
|
Term
What is notable about Chrmydia psittaci? |
|
Definition
|
|
Term
What is one reason M. leparae infects skin and superficial nerves? |
|
Definition
It likes cool temperatures |
|
|
Term
What is the classic symptom of Lyme disease? |
|
Definition
erythema chronicum migrans, an expanding 'bull's eys' red rash with central clearing. |
|
|
Term
What is the classic triad of symptoms associated with Rickettsiae? |
|
Definition
1) headache 2) fever 3) rash (vasiculitis) |
|
|
Term
What is the common manifestation of secondary TB? |
|
Definition
Fibrocaseous cavitary lesion usu. in APICIES of lung |
|
|
Term
What is the common site of infection for Mycobacterium tuberculosis? |
|
Definition
the apicies of the lung (which have the highest PO2) |
|
|
Term
What is the D.O.C. to treat Gardnerella vaginalis? |
|
Definition
|
|
Term
What is the DOC for treating rickettsial infections? |
|
Definition
|
|
Term
What is the DOC for treatment of most rickettsial infections? |
|
Definition
|
|
Term
What is the DOC to treat Lyme Disease? |
|
Definition
|
|
Term
What is the DOC to treat syphilis? |
|
Definition
|
|
Term
What is the drug of choice for H. flu meningitis? What DOC for prophylaxis in close contacts? |
|
Definition
Treat meningitis with CEFTRIAXONE; Rifampin for prophylaxis. |
|
|
Term
What is the drug of choice for Legionaires' disease? |
|
Definition
|
|
Term
What is the morphology of H. flu? |
|
Definition
Small G(-) (coccobacillary) rod |
|
|
Term
What is the morphology of H. pylori? |
|
Definition
|
|
Term
What is the primary drug used to treat leprosy? |
|
Definition
dapsone (toxicity is hemolysis and methemoglobinemia) |
|
|
Term
What is the recommended treatment for Pseudomonas aeruginosa infection? |
|
Definition
aminoglycoside plus extended-spectrum penicillin (e.g. piperacillin or ticarcillin) |
|
|
Term
What is the source of infection and the bacterium that causes endemic typhus? |
|
Definition
|
|
Term
What is the source of infection and the bacterium that causes epidemic typhus? |
|
Definition
R. prowazekii; from human body louse |
|
|
Term
What is the source of infection and the bacterium that causes Q fever? |
|
Definition
Coxiella burnetii; from inhaled aersols |
|
|
Term
What is the source of infection and the bacterium that causes Rocky Mountain Spotted Fever? |
|
Definition
Rickettsia rickettsii; from tick bite |
|
|
Term
What is the toxin responsible for TSS is Staph. aureus? |
|
Definition
TSST-1; it is a superantigen that binds to class II MHC and T-cell receptors---> polyclonal T-cell activation |
|
|
Term
What is the unique component found in Mycoplamsa bacterial membranes? |
|
Definition
|
|
Term
What is the unique feature of Chlamydiae cell walls? |
|
Definition
its peptidoglycan wall lacks muramic acid |
|
|
Term
What is woolsorter's disease? |
|
Definition
inhalation anthrax; can cause life-threatening pneumonia |
|
|
Term
What lab test assays for antirickettsial antibodies? |
|
Definition
|
|
Term
What Lancefield Antigen Group are enterococci in? |
|
Definition
|
|
Term
What Lancefield Antigen Group are Viridans strep in? |
|
Definition
They are non-typealbe. They do not have a C-carbohydrate on their cell wall to be classified by. |
|
|
Term
What level of disinfection is required to kill spores? |
|
Definition
autoclaving; they are highly resistant to destruction by heat and chemicals |
|
|
Term
What populations are most likely to get Mycoplama pneumoniae infection? |
|
Definition
patients younger than age 30 - military recruits - prisons |
|
|
Term
What rickettsial disease is atypical in that it has no rash, no vector, negative Weil-Felix reaction, and its causative organism can survive outside for a long time? |
|
Definition
Q fever (Coxiella burnetii) |
|
|
Term
What species are associated with food poisoning in contaminated seafood? |
|
Definition
Vibrio parahaemolytica and Virbrio vulnificus |
|
|
Term
What species causes diphtheria? |
|
Definition
Corynebacterium diptheriae |
|
|
Term
What species is associated with food poisoning in improperly canned foods (bulging cans)? |
|
Definition
|
|
Term
What species is associated with food poisoning in meats, mayonnaise, and custard? |
|
Definition
Staphylococcus aureus (this food poisoining usu. starts quickly and ends quickly) |
|
|
Term
What species is associated with food poisoning in poultry, meat, and eggs? |
|
Definition
|
|
Term
What species is associated with food poisoning in reheated meat dishes? |
|
Definition
|
|
Term
What species is associated with food poisoning in reheated rice? |
|
Definition
Bacillus cereus ('Food poisoning from reheated rice? Be serious!') |
|
|
Term
What species is associated with food poisoning in undercooked meat and unpasteurized juices? |
|
Definition
|
|
Term
What species of Mycobacteria causes pulmonary, TB-like symptoms? |
|
Definition
|
|
Term
What strain of Haemophilus influenza causes most invasive disease? |
|
Definition
|
|
Term
What symptoms are associated with M. scrofulaceum |
|
Definition
cervical lymphadenitis in kids |
|
|
Term
What test differentiates Viridans from S. pneumoniae? |
|
Definition
Viridans are resistant to optochin; S. pneu. are sensitive to optochin |
|
|
Term
What two bugs secrete exotoxins that act via ADP ribosylation of G-proteins, permanently activating adenyl cyclase (resulting in increased cAMP)? |
|
Definition
Vibrio cholerae - Bordetella pertussis |
|
|
Term
What two genera of G+ rods form long branching filaments resembling fungi? |
|
Definition
|
|
Term
What type of bacteria are difficult to culture, produce gas in tissue (CO2 and H2), and are generally foulsmelling? |
|
Definition
|
|
Term
What type of bacteria is associated with rusty sputum, sepsis in sickle cell, and splenectomy? |
|
Definition
|
|
Term
What type of E. coli are associated with bloody diarrhea? |
|
Definition
enterohemmoragic/ enteroinvasive E. coli |
|
|
Term
What type of immunologic response is elicited by a Salmonella infection? |
|
Definition
|
|
Term
What types of infection can chlamydia cause? (4) |
|
Definition
arthritis-conjunctivitis - pneumonia - nongonococcal urethritis |
|
|
Term
What virulence factor of Staph. aureus binds Fc-IgG, inhibiting complement fixation and phagocytosis? |
|
Definition
|
|
Term
What virulence factor of Strep. pyogenes also serves as an antigen to which the host makes antibodies? |
|
Definition
|
|
Term
What will likely be visible under the microscope in the case of Gardnerella vaginallis infection? |
|
Definition
Clue cell, or vaginal epithelial cells covered with bacteria |
|
|
Term
Where are Viridans strep. found (reservoir)? |
|
Definition
normal flora of oropharynx |
|
|
Term
Where & when is Lyme disease common? |
|
Definition
common in northeast US in summer months |
|
|
Term
Which disease/toxin causes lymphocytosis? (Cholera or Pertussis) |
|
Definition
Pertussis toxin: by inhibiting chemokine receptors |
|
|
Term
Which has an animal reservoir? (Salmonella or Shigella) |
|
Definition
Salmonella: poultry, meat, eggs |
|
|
Term
Which is more specific for syphilis: VDRL or FTA-ABS? |
|
Definition
|
|
Term
Which is more virulent? (Salmonella or Shigella) |
|
Definition
Shigella (10^1 organisms vs. Salmonella 10^5 organisms) |
|
|
Term
Which is motile? (Salmonella or Shigella) |
|
Definition
Salmonella (think: salmon swim) |
|
|
Term
Which species of chlamydia causes and atypical pneumonia? How is it transmitted? |
|
Definition
C. pneumonia -transmitted via aeresol |
|
|
Term
Which two species of chlamydia infect only humans? |
|
Definition
C. trachomatis -C. pneumoniae |
|
|
Term
Why are anaerobes susceptible to oxygen? |
|
Definition
they lack catalase and/or oxidase and are susceptible to oxidative damage |
|
|
Term
Why does TB usually infect the upper lobes of the lung? |
|
Definition
M.tuberculosis is an aerobe; there is more oxygen at the apicies |
|
|
Term
Why must rickettsia and chlamydia always be intracellular? |
|
Definition
they can't make their own ATP |
|
|
Term
Are most fungal spores asexual? |
|
Definition
|
|
Term
Are most P. Carinii infections symptomatic? |
|
Definition
no, most of are asymptomatic |
|
|
Term
Are the above mentioned systemic mycoses dimorphic? |
|
Definition
yes, except coccioidomycosis which is a spherule in tissue |
|
|
Term
How do the S. Schenckii yeast appear in the pus? |
|
Definition
Cigar-shaped budding yeast |
|
|
Term
How do you diagnose cryptosporidium? |
|
Definition
|
|
Term
How do you diagnose giardiasis? |
|
Definition
Trophozoites or cysts in stool |
|
|
Term
How do you get P. Carinii? |
|
Definition
|
|
Term
How do you treat systemic mycoses? |
|
Definition
fluconazole or ketoconazole for local infection, amphotericin B for systemic infection |
|
|
Term
How do you Tx S. Schenckii? |
|
Definition
Itraconazole or Potassium Iodide |
|
|
Term
How does Aspergillus appear microscopically? |
|
Definition
Mold with septate hyphae that branch at a V-shaped (45 degree angle) , they are NOT dimorphic |
|
|
Term
How does Mucor species appear microscopically? |
|
Definition
It is a mold with irregular nonseptate hyphae branching at wide angles>90 degrees |
|
|
Term
How does Paracocciodioidomycosis appear histologically? |
|
Definition
Captain's wheel' appearance (like on a sailboat) |
|
|
Term
How is Clonorchis sinensis transmitted and what disease results? |
|
Definition
undercooked fish; causes inflammation of the biliary tract |
|
|
Term
How is Schistosoma transmitted and what disease results? |
|
Definition
snails are host; cercariae penetrate skin of humans; causes granulomas, fibrosis, and inflammation of the spleen and liver |
|
|
Term
How is Ancylostoma Duodenale transmitted and what disease results? |
|
Definition
Larvae penetrate skin of feet; intestinal infection can cause anemia |
|
|
Term
How is Ascaris Lumbricoides transmitted and what disease results? |
|
Definition
Eggs are visible in feces; intestinal infection |
|
|
Term
How is cryptosporidium transmitted? |
|
Definition
|
|
Term
How is Dracunculus medinensis transmitted and what disease results? |
|
Definition
In drinking water; sink inflammation and ulceration |
|
|
Term
How is E. granulosis transmitted and what disease results? |
|
Definition
Eggs in dog feces cause cysts in liver; causes anaphylaxis if echinococcal antigens released from cysts |
|
|
Term
How is E. Histolytica transmitted? |
|
Definition
|
|
Term
How is Enterobius Vermicularis transmitted and what disease results? |
|
Definition
food contaminated with eggs; intestinal infections; causes anal pruritus |
|
|
Term
How is giardia transmitted? |
|
Definition
|
|
Term
How is Loa loa transmitted and what disease results? |
|
Definition
Transmitted by deer fly; causes swelling the in the skin (can see worm crawling in conjunctiva) |
|
|
Term
|
Definition
|
|
Term
How is malaria transmitted? |
|
Definition
|
|
Term
How is Onchocerca volvulus transmitted and what disease results? |
|
Definition
transmitted by female blackflies; causes river blindness |
|
|
Term
How is Paragonimus Westermani transmitted and what disease results? |
|
Definition
Undercooked crab meat; causes inflammation and secondary bacterial infection of the lung |
|
|
Term
How is Sporothrix schenckii appear under the scope? |
|
Definition
Dimorphic fugus that lives on vegetation |
|
|
Term
How is Strongyloides Stercoralis transmitted and what disease results? |
|
Definition
larvae in soil penetrate the skin; intestinal infection |
|
|
Term
How is T. Canis transmitted and what disease results? |
|
Definition
food contaminated with eggs; causes granulomas (if in retina=blindness) |
|
|
Term
How is T. Solium transmitted and what disease results? |
|
Definition
undercooked pork tapeworm; causes mass lesions in the brain, cysticercosis |
|
|
Term
How is T. Vaginalis transmitted? |
|
Definition
|
|
Term
|
Definition
cysts in meat or cat feces |
|
|
Term
How is Trichinella Spiralis transmitted and what disease results? |
|
Definition
undercooked meat, usually pork; inflammation of muscle, periorbital edema |
|
|
Term
How is Wucheria transmitted and what disease results? |
|
Definition
female mosquito; causes blockage of lymphatic vessels (elephantiasis) |
|
|
Term
In what cells do you find histoplasmosis? |
|
Definition
|
|
Term
Is Pneumocystis Carinii a yeast? |
|
Definition
Yes, but originally classified as a Protozoa |
|
|
Term
Microscopically how does Candida appear? |
|
Definition
budding yeast with pseudohyphae, germ tube formation at 37 degrees C) |
|
|
Term
Name 3 Trematodes (Flukes) |
|
Definition
Schistosoma, Clonorchis sinensis, Paragonimus Westermani |
|
|
Term
Name 4 opportunistic fungal infections. |
|
Definition
Candida Albicans, Aspergillus fumigatus, Cryptococcus Neoformans, Mucor and Rhizopus species |
|
|
Term
|
Definition
Coccidiomycosis, Histoplasmosis, Paracoccidioidomycosis, Blastomycosis |
|
|
Term
Name two asexual spores transmitted by inhalation. |
|
Definition
Hisoplasmosis and Coccidiodomycosis |
|
|
Term
Name two Cestodes (Tapeworms) . |
|
Definition
Taenia Solium, and Echinococcus Ganulosus |
|
|
Term
What agar is used to culture for systemic mycoses? |
|
Definition
|
|
Term
|
Definition
asexual fungal spores (ex. Blastoconidia, and arthroconidia) |
|
|
Term
what are most common Candida infections? |
|
Definition
Thrush in Immunocompromised pts (neonates, patients on steroids, diabetics and AIDS pts) , endocarditis in IV drug users, vaginitis (high pH, Diabetes, post-antibiotic) , diaper rash, disseminated candidiasis (to any organ) |
|
|
Term
What are some infections caused by cryptococcus? |
|
Definition
Cryptococcal meningitis, cryptococcosis |
|
|
Term
What are the 10 Nematodes (roundworms) we are concerned with? |
|
Definition
Ancylostoma duodenale (hookworm) , Ascaris Lumbricoides, Enterobius Vermicularis (pinworm) , Strongyloides stercoralis, Trichinella Spiralis, Dracunculus Medinensis, Loa loa, Onchocerca Volvulus, Toxocara Canis, Wucheria Bancrofti |
|
|
Term
What are the 4 B's of Blastomycosis? |
|
Definition
Big, Broad-Based, Budding |
|
|
Term
What are the diseases caused by Cryptosporidium? |
|
Definition
Severe diarrhea in AIDS, Mild disease (watery diarrhea) in non-HIV |
|
|
Term
What are the diseases caused by Toxoplasma? |
|
Definition
Brain abscess in HIV and birth defects |
|
|
Term
what are the infections caused by Aspergillus? |
|
Definition
Ear fungus, Lung cavity Aspergilloma ('fungus ball') , invasive aspergillosis. |
|
|
Term
what can systemic mycoses mimic ? |
|
Definition
|
|
Term
What disease are caused by Entamoeba Histolytica ? |
|
Definition
Amebiasis: bloody diarrhea, dysentery, liver abscess, RUQ pain |
|
|
Term
What disease does Mucor species cause? |
|
Definition
|
|
Term
What disease does Pneumocystis carinii cause? |
|
Definition
Pneumocystis Carinii pneumonia |
|
|
Term
What disease does Sporothrix Schenckii cause? |
|
Definition
|
|
Term
What disease does Trypanosoma Cruzi cause? |
|
Definition
Chagas disease (heart dis) |
|
|
Term
What disease is caused by Giardia Lamblia? |
|
Definition
Giardiasis: bloating, flatulence, foul-smelling diarrhea |
|
|
Term
What disease is caused by Leishmanina donovani? |
|
Definition
Visceral Leishmaniasis (Kala azar) |
|
|
Term
What disease is caused by P. Carinii? |
|
Definition
Diffuse interstitial pneumonia in HIV |
|
|
Term
What disease is caused by the plasmodium species (vivax, ovale, malariae, falciparum) ? |
|
Definition
Malaria: cyclic fever, headache, anemia, splenomegaly |
|
|
Term
What disease is caused by Trypanosma Gambiense and Rhodesiense? |
|
Definition
African Sleeping sickness |
|
|
Term
What disesase does Trichomonas Vaginalis cause? |
|
Definition
Vaginitis: foul-smeilling, greenish discharge; itching and burning |
|
|
Term
What do you tx P. Carinii with? |
|
Definition
TMP-SMZ, or pentamidine, or dapsone |
|
|
Term
What do you use to culture cryptococcus? |
|
Definition
|
|
Term
What do you use to Diagnose E. Histolytica? |
|
Definition
Serology and/or trophozoites or cysts in stool |
|
|
Term
What do you use to stain Cryptococcus? |
|
Definition
|
|
Term
What do you use to tx cryptosporidium? |
|
Definition
|
|
Term
What do you use to Tx Giardiasis? |
|
Definition
|
|
Term
What do you use to tx T. Vaginalis? |
|
Definition
|
|
Term
What do you used to dx P. Carinii? |
|
Definition
Lung biopsy or lavage, methenamine silver stain |
|
|
Term
What do you used to Tx Candida Albicans? |
|
Definition
Nystatin for superficial infections,Amphotercin B for systemic |
|
|
Term
|
Definition
|
|
Term
what does dimorphic mean? |
|
Definition
fungi that are mold in the soil (low temp) and yeast in tissue (higher/body temp 37 C) |
|
|
Term
What is diagnositic for L. donovani? |
|
Definition
macrophages containing amastigotes |
|
|
Term
What is diagnositic of T. Vaginalis? |
|
Definition
Trophozoites on wet mount |
|
|
Term
What is histoplasmosis associated with? |
|
Definition
|
|
Term
What is the progression of S. Schenckii infection? |
|
Definition
traumatic introduction into the skin, typically by a thorn ('rose gardner's' disease) , causes local pustule or ulcer with nodules along draining lymphatics (ascending lymphangitis) . Little systemic illness. |
|
|
Term
what is the vector for L. Donovan? |
|
Definition
|
|
Term
what is the vector for T.Cruzi? |
|
Definition
|
|
Term
What is the vector for T. Gambiense and Rhodesiense? |
|
Definition
|
|
Term
What is used to dx African sleeping sickness? |
|
Definition
|
|
Term
What is used to dx T. Cruzii? |
|
Definition
|
|
Term
what is used to dx toxoplasma? |
|
Definition
|
|
Term
What is used to treat D. Medinensis? |
|
Definition
|
|
Term
What is used to Treat E. Histolytica? |
|
Definition
metronidazole and iodoquinol |
|
|
Term
What is used to tx african sleeping sickness? |
|
Definition
Suramin for bloodborne disease or melaroprol for CNS penetration |
|
|
Term
What is used to tx Ancylostoma duodenale? |
|
Definition
mebendazole/pyrantel pamoate |
|
|
Term
What is used to tx Ascaris Lumbricoides? |
|
Definition
mebendazole/pyrantel pamoate |
|
|
Term
What is used to tx Clonorhis sinensis? |
|
Definition
|
|
Term
What is used to tx E. Granulosus? |
|
Definition
|
|
Term
What is used to tx E. Vermicularis? |
|
Definition
Mebendazole/pyrantel pamoate |
|
|
Term
What is used to tx L. Donovani? |
|
Definition
|
|
Term
What is used to tx Loa loa? |
|
Definition
|
|
Term
What is used to tx malaria? |
|
Definition
Chloroquine ( primaquine for vivax, ovale) , sulfadoxine + pyrimethamine, mefloquine, quinine |
|
|
Term
What is used to tx O. Volvulus? |
|
Definition
|
|
Term
What is used to tx Paragonimus Wetermani? |
|
Definition
|
|
Term
What is used to tx S. Stercoralis? |
|
Definition
|
|
Term
What is used to tx schistosoma? |
|
Definition
|
|
Term
What is used to tx T. Canis? |
|
Definition
|
|
Term
What is used to tx T. Cruzii? |
|
Definition
|
|
Term
What is used to tx T. Spiralis? |
|
Definition
|
|
Term
What is used to tx taenia solium infection? |
|
Definition
Praziquantel/niclosamide; albendazole for cysticercosis |
|
|
Term
What is used to tx toxoplasma? |
|
Definition
sulfadiazine + pyrimethamine |
|
|
Term
What is used to tx W. Bancrofti? |
|
Definition
|
|
Term
What patient population is susceptible to Mucor disease? |
|
Definition
Ketoacidotic patients and Leukemic patients |
|
|
Term
What stain do you use for lung tissue when you are detecting P. Carinii? |
|
Definition
|
|
Term
What is used to tx toxoplasma? |
|
Definition
sulfadiazine + pyrimethamine |
|
|
Term
What state predisposes you to P. Carinii infection? |
|
Definition
|
|
Term
What test can be used to detect polysaccharide capsular antigen of Cryptococcus? |
|
Definition
|
|
Term
What types of infections can Candida Albicans cause? |
|
Definition
systemic or superficial fungal infections |
|
|
Term
When do you start prophylaxis in HIV patients? |
|
Definition
when the CD4 drops below 200 cells/mL |
|
|
Term
Where do the mucor and rhizopus species fungi proliferate? |
|
Definition
in the walls of blood vessels and cause infarction of distal tissue |
|
|
Term
Where is Blastomycosis endemic? |
|
Definition
States east of the Mississippi River and Central America |
|
|
Term
Where is Coccidioidomycosis endemic? |
|
Definition
SWUS, California (San Joaquin Valley or destert (desert bumps) 'Valley fever') |
|
|
Term
Where is Histoplasmosis endemic? |
|
Definition
Mississippi and Ohio River valleys |
|
|
Term
Where is Paracoccioidomycosis endemic? |
|
Definition
|
|
Term
All viruses are haploid except _________?(1) |
|
Definition
Retroviruses, which have two identical ssRNA molecules (diploid). |
|
|
Term
Bites from what 3 animals are more prone to rabies infection than a bite from a dog? |
|
Definition
|
|
Term
|
Definition
When one of 2 viruses that infects the cell has a mutation that results in a nonfunctional protein. The nonmutated virus 'complements' the mutated one by making a functional protein that serves both viruses. |
|
|
Term
|
Definition
Minor changes based on random mutations. |
|
|
Term
|
Definition
Reassorment of viral genome (such as when human flu A virus recombines with swin flu A virus.) |
|
|
Term
define phenotypic mixing? |
|
Definition
When virus A acquires virus B coat proteins and acts like virus B buts its progeny will have virus A genome and coat. |
|
|
Term
|
Definition
-When viruses with segmented genomes (eg. influenza virus) exchange segments. -High frequency recombination. Cause of worldwide pandemics. |
|
|
Term
|
Definition
Exchange of genes between 2 chromosomes by crossing over within regions of significant base sequence homology. |
|
|
Term
Describe its incubation period and whether or not it has a carrier ? |
|
Definition
-Short incubation period (3 weeks) -No carriers |
|
|
Term
Describe its incubation period and whether or not it has a carrier. |
|
Definition
-Long incubation (3 months) - has carriers |
|
|
Term
Describe the general concept of bacterial super infection which can occur with influenza infection? |
|
Definition
A life-threatening illness where a bacterial infection is superimposed on an existing viral infection. |
|
|
Term
Describe the genetic and physical properties of influenza virus? |
|
Definition
-Enveloped -ssRNA virus with segmented genome -prone to genetic changes |
|
|
Term
Describe the migration of rabies within the CNS. |
|
Definition
It migrates in a retrograde fashion within the CNS up n. axons. |
|
|
Term
Describe the physical shape and duration of incubation for rabies. |
|
Definition
-Bullet-shaped capsid (illus. in book) -long incubation period (wks. - 3 months) |
|
|
Term
Describe the technique and purpose for performing a Tzanck test? |
|
Definition
-assay for herpes -make a smear of an opened skin vesicle to detect multinucleated giant cells |
|
|
Term
Describe whether or not it has a carrier. |
|
Definition
|
|
Term
|
Definition
|
|
Term
Explain the concept of a slow virus infection. |
|
Definition
Virus exists in patient for months to years before it manifests as clinical disease. |
|
|
Term
From the following selection which classes are considered infectious and which aren't: dsDNA, ds RNA, (-)ssRNA, (+) ssRNA. |
|
Definition
-Infectious: dsDNA (except poxviruses and HBV) and (+) ssRNA -Noninfectious: dsRNA and (-)ssRNA |
|
|
Term
HCV is a common form of hepatitis in what US population? |
|
Definition
|
|
Term
How does a Monospot test work? |
|
Definition
It detects heterophil antibodies by agglutination to sheep RBC's |
|
|
Term
How is RNA translated and processed in picornaviruses? |
|
Definition
RNA is translated into one long polypeptide that is cleaved by proteases into many small proteins. |
|
|
Term
How many segments and what sense is the RNA genome of influenza viruses? |
|
Definition
-8 segments -negative sense |
|
|
Term
How may serotypes do paramyxoviruses have except parainfluenza which has ___? |
|
Definition
|
|
Term
Into what class RNA or DNA to all segmented viruses fall? |
|
Definition
|
|
Term
Killed vaccines induce what type of immunity? |
|
Definition
Humoral, with no possibility of the virus reverting to virulence |
|
|
Term
Live attenuated vaccines induce what type of immunity? |
|
Definition
Humoral and Cellular -with a risk of the virus reverting to virulence |
|
|
Term
Mneumonic for rotavirus symptoms: ROTA |
|
Definition
|
|
Term
|
Definition
Defective, Dependent on HBV |
|
|
Term
|
Definition
Enteric, Expectant mothers, Epidemics |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
pico = 'small' RNA viruses |
|
|
Term
Name 2 common bacterial infections in AIDS pts. |
|
Definition
infections in AIDS pts. TB, M. avium-intracellulare complex |
|
|
Term
Name 2 common protozoan infections in AIDS pts. |
|
Definition
Toxoplasmosis, cryptosporidiosis |
|
|
Term
Name 3 members of the arborvirus family. |
|
Definition
Flavivirus, Togavirus, and Bunyavirus |
|
|
Term
Name 3 possible sequelae of measles infection? |
|
Definition
-SSPE -encephalitis -giant cell pneumonia (rare;found in immunocompromised persons) |
|
|
Term
Name 4 common fungal infections in AIDS pts. |
|
Definition
-Thrush (Candida ablicans) - cryptococcosis (cryptococcal meningitis) -histoplasmosis - Pneumocystis pneumonia |
|
|
Term
Name 4 common viral infections in AIDS pts. |
|
Definition
-HSV -VZV -CMV - progressive multifocal leukoencephalopathy (JC virus) |
|
|
Term
Name 4 herpesviruses using the mneumonic: Get herpes in a CHEVrolet. |
|
Definition
|
|
Term
Name 4 main segmented viruses using the mneumonic BOAR. |
|
Definition
-Bunyaviruses - Orthomyxoviruses (influenza virus) -Arenaviruses - Reoviruses |
|
|
Term
Name eveloped DNA viruses (3). HPH |
|
Definition
|
|
Term
Name naked DNA viruses (3). PAP |
|
Definition
-Parvo -Adeno -Papova 'You need to be naked for a PAP smear.' |
|
|
Term
Name the 3 naked RNA viruses Naked CPR). |
|
Definition
-Calcivivirus -Picornavirus - Reovirus |
|
|
Term
Name the characteristic cytoplasmic inclusions seen in neurons infected with rabies. |
|
Definition
|
|
Term
Name the DNA enveloped viruses (3). |
|
Definition
-Herpesviruses (herpes simplex virus types 1 and 2, VZV, CMV, EBV) -HBV - smallpox virus |
|
|
Term
Name the DNA nucleocapsid viruses (2). |
|
Definition
Adenovirus, Papillomaviruses |
|
|
Term
Name the DNA viruses using the mneumonic 'HHAPPPy viruses.' |
|
Definition
-Hepadnavirus - Herpesviruses -Adenovirus - Parvovirus -Papovavirus - Poxvirus |
|
|
Term
Name the illness caused by rabies and 2 primary symptoms. |
|
Definition
Encephalitis, fatal is not prevented, with seizures and hydrophobia |
|
|
Term
Name the members of the PaRaMyxovirus using the letters in bold (4 viruses). |
|
Definition
-Parainfluenza -RSV -Measles -Mumps |
|
|
Term
Name the recombinant vaccine available (1). |
|
Definition
HBV (antigen = recombinant HBsAg) |
|
|
Term
Name the RNA enveloped viruses (9). |
|
Definition
-Influenza viruses - parainfluenza viruses -RSV - measles -mumps -rubella - rabies -HTLV -HIV |
|
|
Term
Name the RNA nucleocapsid viruses (3). |
|
Definition
-Enteroviruses (poliovirus, coxsackievirus, echovirus, hepatitis A virus) -rhinovirus -reovirus. |
|
|
Term
Name the vaccines that are killed (4). |
|
Definition
-rabies -influenza -hepatitis A -SalK=Killed |
|
|
Term
Name the vaccines that are live attenuated (6). |
|
Definition
-MMR -Sabin polio -VZV - yellow fever |
|
|
Term
Of these 3 markers (HBsAg, HBsAb, HBcAg), which ones are positive in each of the 4 phases below: (acute disease, window phase, complete recovery, chronic carrier). |
|
Definition
-HBsAg, HBcAg -HBcAg - HBsAb, HBcAg -HBsAg, HBcAg |
|
|
Term
On HIV, what is gp41 and gp120? |
|
Definition
|
|
Term
On HIV, what is p24? (illus. p. 205) |
|
Definition
rectangular nucleocapsid protein |
|
|
Term
Roughly, what are the time periods for acute, latent, and immunodeficient stages of HIV? |
|
Definition
Acute: 1-3 months Latent: 3 months-3years Immunodefic.: 3 yrs.-death (diagram p. 205 that follows serologic course). |
|
|
Term
Statement: HEV resembles HAV in: |
|
Definition
course, severity, and incubation, |
|
|
Term
Use the mneumonic PERCH to name members of the Picornavirus family. |
|
Definition
-Poliovirus -Echovirus - Rhinovirus -Coxsackievirus - Hepatitis A |
|
|
Term
Viral nucleic acids with (choose) same/different nucleic acids as host are infective alone; others require special enzymes (contained in intact virion.) |
|
Definition
|
|
Term
What 2 antigens are used to classify influenza? |
|
Definition
Neuraminadase, Hemagglutinin |
|
|
Term
What age group is the primary target of paramyxoviruses? |
|
Definition
|
|
Term
What antiviral treatment is approved for influenza A (especially prophylaxis) but not for influenza B & C |
|
Definition
Amantadine and Rimantadine |
|
|
Term
What antiviral treatment is approved for influenza A and B? |
|
Definition
|
|
Term
What are Councilman bodies and what are they pathomneumonic for? |
|
Definition
acidophilic inclusions seen in the liver of those with yellow fever |
|
|
Term
What are the 3 C's of measles? |
|
Definition
-Cough -Coryza - Conjunctivitis |
|
|
Term
What are the 4 C's of HCV. |
|
Definition
Chronic, Cirrhosis, Carcinoma, Carriers |
|
|
Term
What are the 4 most common diseases caused by prions? |
|
Definition
-Creutzfeldt-Jakob disease (CJD: rapid progressive dementia) -kuru -scrapie (sheep -'mad cow disease' |
|
|
Term
What are the causes of SSPE and PML in immunocompromised pts. |
|
Definition
-Late sequelae of measles - Reactivation of JC virus |
|
|
Term
What are the classic symptoms of yellow fever? |
|
Definition
-high fever -black vomitous - jaundice |
|
|
Term
What are the common diseases (1) and routes of transmission(1) for HHV-8? |
|
Definition
-Kaposi's sarcoma (HIV pts.) - sexual contact |
|
|
Term
What are the common diseases (2) and routes of transmission(2) for EBV? |
|
Definition
-infectious mono, Burkitt's lymphoma -resp. secretions, saliva |
|
|
Term
What are the common diseases (2) and routes of transmission(2) for HSV-2? |
|
Definition
-herpes genitalis, neonatal herpes -sexual contact, perinatal |
|
|
Term
What are the common diseases (3) and routes of transmission(1) for VZV? |
|
Definition
-varicella zoster (shingles) - encephalitis -pneumonia |
|
|
Term
What are the common diseases (3) and routes of transmission(2) for HSV-1? |
|
Definition
-gingivostomatitis keratoconjunctivitis temporal lobe encephalitis herpes labialis -respiratory secretions and saliva |
|
|
Term
What are the common diseases (3) and routes of transmission(6) for CMV? |
|
Definition
-congenital infection, mono, pneumonia -congenital, transfusion, sexual contact, saliva, urine, transplant |
|
|
Term
What are the general characteristics of a prion? |
|
Definition
infectious agent that does not contain RNA or DNA, consists only of protein |
|
|
Term
What are the major viruses of the paramyxovirus family? (4) |
|
Definition
-parainfluenza (croup) -RSV - Measles -Mumps |
|
|
Term
What are the primary symptoms of the mumps virus? (MOP) |
|
Definition
-aseptic Meningitis -Orchitis -Parotitis (mumps give you bumps = parotitis) |
|
|
Term
What are the primary viruses of the picornavirus family? (PERCH) |
|
Definition
-Poliovirus -Echovirus - Rhinovirus -Coxsackievirus - Hepatitis A |
|
|
Term
What are two classic illness caused by arborviruses? |
|
Definition
-dengue fever (break-bone fever) -yellow fever |
|
|
Term
What general form of encephalopathies do prions present as? |
|
Definition
spongiform encephalopathies |
|
|
Term
What genetic property does segmentation afford viruses and how does this play into flu epidemics? |
|
Definition
-Segmentation allows reassorment to occur in RNA viruses -this contributes to antigenic shifts which cause most flu pandemics. |
|
|
Term
What group has a high mortality rate from HEV? |
|
Definition
|
|
Term
What hematologic finding is characteristic of mono? |
|
Definition
abnormal circulating cytotoxic T cells (atypical lymphocytes) |
|
|
Term
What is HBcAb, and what does it indicate? |
|
Definition
Antibody to HBcAg; IgM HBcAb indicates recent disease |
|
|
Term
|
Definition
Antigen associated with core of HBV |
|
|
Term
What is HBeAb, and what does it indicate? |
|
Definition
Antibody to e antigen; indicates low transmissibility |
|
|
Term
What is HBeAg, and what does it indicate? |
|
Definition
it is a 2nd different antigen marker of HBV core; indicates transmissibility (HBeAg=Beware) |
|
|
Term
What is HBsAb, and what does it do? |
|
Definition
Antibody to HBsAg; provides immunity to hepatitis B |
|
|
Term
What is HBsAg, and what does it indicate? |
|
Definition
Antigen found on surface of HBV; continued presence indicates carrier state |
|
|
Term
What is IgM HAVAb, and what is it used to detect? |
|
Definition
IgM antibody to HAV; best test to detect active hepatitis A |
|
|
Term
What is meant by the 'window period' in HBV infection, and what is positive in this period? |
|
Definition
It is the period between disappearance of HBsAg and appearance of Anti-HBs; HBcAb is pos. during this period. |
|
|
Term
What is the classic vector for arborvirus? |
|
Definition
Arthropods (mosquitos, ticks, etc.) ARBOR=Arthropod Borne |
|
|
Term
What is the function of reverse transcriptase in HIV? |
|
Definition
synthesize dsDNA from RNA for integration into host genome. |
|
|
Term
What is the major mode of protection from influenza virus? |
|
Definition
Killed viral vaccine which is reformulated each year and is given to those in high risk of infection (elderly, healthworkers, etc.) |
|
|
Term
What is the method behind ELISA/Western blot and during what period of HIV infection are they often negative? |
|
Definition
look for abs to viral proteins; false negatives common in first 1-2 months of infection |
|
|
Term
What is the mneumonic for remembering the Tzanck smear? |
|
Definition
Tzanck heavens I don't have herpes. |
|
|
Term
What is the only DNA virus that is not double stranded? |
|
Definition
|
|
Term
What is the only RNA virus that has dsRNA? |
|
Definition
Reoviridae ['repeatovirus' (reovirus) is dsRNA] |
|
|
Term
What is the viral cause of the common cold? |
|
Definition
-Rhinovirus, 100+ serotypes -Rhino has a Runny nose. |
|
|
Term
What neurologic infection can picornaviruses (except rhinoviruses and hepatitis A viruses) cause? |
|
Definition
|
|
Term
What physical finding is diagnostic for measles? |
|
Definition
Koplik spots (bluish-gray spots on buccal mucosa) |
|
|
Term
What population should not receive a live vaccine? |
|
Definition
Those who are immunocompromised and their close contacts. |
|
|
Term
What reproductive complication can mumps cause? |
|
Definition
sterility; especially after puberty |
|
|
Term
What shape are all the DNA viruses? Which virus (1) is the exception? |
|
Definition
-Icosahedral -Poxvirus (complex) |
|
|
Term
What test is used to make the presumptive dx of HIV, and then, which test confirms the dx? |
|
Definition
ELISA (sensitive w/ high false + and low threshold); Western blot (specific, high false - rate with high threshold) |
|
|
Term
What tests are gaining popularity for monitoring drug tx efficacy in HIV? |
|
Definition
|
|
Term
What type of genome does HIV have? |
|
Definition
|
|
Term
What type of nucleic acid structure does rotavirus have? |
|
Definition
|
|
Term
What type of transcription occurs and what type of polymerase does it possess? |
|
Definition
-Reverse transcription -the virion contains an RNAdependent DNA polymerase |
|
|
Term
What type of virus is HAV and how is it transmitted? |
|
Definition
-RNA picornavirus -fecal-oral route |
|
|
Term
What type of virus is HBV and how is it transmitted? |
|
Definition
-DNA hepadnavirus - parenteral, sexual, and maternal-fetal routes |
|
|
Term
What type of virus is HCV and how is it transmitted? |
|
Definition
-RNA flavivirus -via blood and resembles HBV in its course and severity |
|
|
Term
What type of virus is HDV and what is special about its envelope? |
|
Definition
-delta agent, it is a defective virus -requires HBsAg as its evelope |
|
|
Term
What type of virus is HEV and how is it transmitted? |
|
Definition
-RNA calicivirus -enteric transmission; causes waterborne epidemics |
|
|
Term
What variant of dengue fever is found in Southeast Asia? |
|
Definition
hemorrhagic shock syndrome |
|
|
Term
What virus causes and what are the classic symptoms of mononucleosis? |
|
Definition
-EBV -fever, hepatosplenomegaly, pharyngitis, lymphadenopathy (esp. posterior auricular nodes) |
|
|
Term
What virus causes yellow (=flavi) fever, and what is its vector and reservoirs (2)? |
|
Definition
-flavivirus -Aedes mosquitos -monkey or human reservoir |
|
|
Term
What virus is the most common global cause of infantile gastroenteritis and acute diarrhea (in the US). |
|
Definition
|
|
Term
Where do enveloped viruses acquire their envelopes, and what virus is the exception to this rule? |
|
Definition
-Plasma membrane - Herpesviruses which acquire their envelope from the nuclear membrane |
|
|
Term
Where in the cell do DNA viruses replicate, and which virus is the exception to this rule? |
|
Definition
-Nucleus -exception: poxvirus in cytoplasm (carries DNA-dependent RNA polymerase) |
|
|
Term
Where in the cell do RNA viruses replicate, and what 2 viruses are the exception to this rule? |
|
Definition
-Cytoplasm -exception: influenza virus and retroviruses |
|
|
Term
Which marker tests are appropriate for each phase of hepatitis infection: Incubation, Prodrome/acute illness, Early Convalescence, Late Convalescence. |
|
Definition
-HBsAg -HBsAg (Anti-HBc) - Anti-HBc -Anti-HBs (anti- HBc) |
|
|
Term
Which two DNA viruses don't have a linear genome? (they're circular) |
|
Definition
Papovaviruses and Hepadnaviruses |
|
|
Term
Which two hepatitis viruses follow the fecal-oral route? |
|
Definition
A and E; 'The vowels hit your bowels.' |
|
|
Term
Which two hepatitis viruses predispose to hepatocellular carcinoma? |
|
Definition
|
|
Term
Why is mono called the 'kissing disease?' |
|
Definition
-Peak incidence occurs during peak kissing years 15-20 yo -(saliva transmission) |
|
|
Term
3 main roles of Ig binding to bacteria |
|
Definition
- opsonization - neutralization - complement activation |
|
|
Term
A defect in phagocytosis of neutrophils owing to lack of NADPH oxidase activity or similar enzymes is indicative of what immune deficiency disease? |
|
Definition
Chronic granulomatous disease |
|
|
Term
After exposure to what 4 things are preformed (passive) antibodies given? |
|
Definition
Tetanus toxin, Botulinum toxin, HBV, or Rabies. |
|
|
Term
All nucleated cells have what class of MHC proteins? |
|
Definition
|
|
Term
Anaphylaxis, asthma, or local wheal and flare are possible manifestations of which type of hypersensitivity? |
|
Definition
|
|
Term
Anti-gliadin autoantibodies are associated with what disease? |
|
Definition
|
|
Term
Anti-Scl-70 autoantibodies are associated with what disease? |
|
Definition
|
|
Term
Autoimmune hemolytic anemia, Rh disease (erythroblastosis fetalis), and Goodpasture's syndrome are examples of what kind of hypersensitivity reaction? |
|
Definition
|
|
Term
Class I major histocompatibilty complex consists of … |
|
Definition
1 polypeptide, with B2- microglobulin |
|
|
Term
Class II major histocompatibilty complex consists of … |
|
Definition
2 polypeptides, an a and a B chain |
|
|
Term
Cytotoxic T cells have CD(?), which binds to class (?) MHC on virus-infected cells. |
|
Definition
|
|
Term
Define acute transplant rejection. |
|
Definition
Cell-mediated due to cytotoxic T lymphocytes reacting against foreign MHCs. Occurs weeks after transplantation. |
|
|
Term
|
Definition
Adjuvants are nonspecific stimulators of the immune response but are not immunogenic by themselves. |
|
|
Term
Define chronic transplant rejection. |
|
Definition
Antibody-mediated vascular damage (fibrinoid necrosis)-- irreversible. Occurs months to years after transplantation. |
|
|
Term
Define hyperacute transplant rejection. |
|
Definition
Antibody-mediated due to the presence of preormed anti-donor antibodies in the transplant recipient. Occurs within minutes after transplantation. |
|
|
Term
|
Definition
Ig epitope that differs among members of the same species (on light or heavy chain) |
|
|
Term
|
Definition
Ig epitope determine by the antigen-binging site (specific for a given antigen-binding site) |
|
|
Term
|
Definition
Ig epitope common to a single class of Ig (5 classes, determined by the heavy chain) |
|
|
Term
Give 3 classic examples of bacteria with antigen variation. |
|
Definition
(1) Salmonella (2 flagellar variants) (2) Borrelia (relapsing fever) (3) Neisseria gonorrhoeae (pilus protein) |
|
|
Term
Give 3 examples of possibly causes for SCID? |
|
Definition
(1) failure to synthesize class II MHC antigens (2) defective Il-2 receptors (3) adenosine deaminase deficiency |
|
|
Term
Goodpasture's syndrome is associated with what kind of autoantibodies? |
|
Definition
anti-basement membrane antibodies. |
|
|
Term
Helper T cells have CD(?) which binds to class (?) MHC on antigen-presenting cells. |
|
Definition
CD4 binds to class II MHC |
|
|
Term
How does Bruton's agammaglobulinemia usually present? |
|
Definition
as bacterial infections in boys after about 6 months of age, when levels of maternal IgG antibody decline |
|
|
Term
How is active immunity acquired? |
|
Definition
Active immunity is induced after exposure to foreign antigens. There is a slow onset with long-lasting protection. |
|
|
Term
How is passive immunity acquired? |
|
Definition
by receiving preformed antibodies from another host. Antibodies have a short life span, but the immunity has a rapid onset. |
|
|
Term
IL-4 promotes the growth of B cells and the synthesis of what 2 immunoglobulins? |
|
Definition
|
|
Term
In what immune deficiency do neutrophils fail to respond to chemotactic stimuli? |
|
Definition
|
|
Term
In what T-cell deficiency do the thymus and parathyroids fail to develop owing to failure of development of the 3rd and 4th pharyngeal pouches? |
|
Definition
Thymic aplasia (DiGeorge syndrome) |
|
|
Term
Job's syndrome is associated with high levels of what immunoglobulin? |
|
Definition
|
|
Term
MHC I Ag loading occurs in __ (1?)__ while MHC II Ag loading occurs in __(2?)__? |
|
Definition
(1) in rER (viral antigens) (2) in acidified endosomes. |
|
|
Term
Primary biliary cirrhosis has what kind of autoantibodies? |
|
Definition
anti-mitochondrial antibodies |
|
|
Term
|
Definition
produce IL-2 (activate Tc cells and further stimulate TH1 cell) and g-interferon (activate macrophages) |
|
|
Term
|
Definition
produce IL-4 and IL-5 (help B cells make Ab) |
|
|
Term
Sensitized T lymphocytes encounter antigen and then release lymphokines which leads to macrophage activation' in what hypersensitivity reaction? |
|
Definition
|
|
Term
TB skin test, transplant rejection, and contact dermatitis are examples of what type of hypersensitivity reaction? |
|
Definition
|
|
Term
The 3 kinds of MHC class I genes are… |
|
Definition
|
|
Term
The 3 kinds of MHC class II genes are… |
|
Definition
|
|
Term
The Fc portion of immunoglobulins are at the __?__ terminal. |
|
Definition
|
|
Term
What 2 cytokines are secreted by macrophages? |
|
Definition
|
|
Term
What 2 kinds of autoantibodies are specific for systemic lupus? |
|
Definition
Anti-dsDNA and anti-Smith |
|
|
Term
What 3 cytokines are classified as 'acute phase cytokines'? |
|
Definition
|
|
Term
What 3 ways do interferons interfere with viral protein synthesis? |
|
Definition
(1) alpha and beta interferons induce production of a second protein that degrades viral mRNA (2) gamma interferons increase MHC class I expression and antigen presentation in all cells (3) activates NK cells to kill virus-infected cells. |
|
|
Term
What affect do the acute phase cytokines have on fat and muscle? |
|
Definition
mobilization of energy reserves to raise body temperature |
|
|
Term
What affect do the acute phase cytokines have on the bone marrow? |
|
Definition
Incr. Production of Colony stim. Factor (CS) which leads to leukocytosis |
|
|
Term
What affect do the acute phase cytokines have on the hypothalamus? |
|
Definition
increase body temperature |
|
|
Term
What antibody isotype can cross the placenta? |
|
Definition
|
|
Term
What are 3 types of antigenpresenting cells? |
|
Definition
macrophages, B cells, and dendritic cells |
|
|
Term
What are the maim symptoms of serum sickness an at what period of time following Ag exposure? |
|
Definition
fever, urticaria, arthralgias, proteinuria, lymphadenopathy 5-10 days after Ag exposure |
|
|
Term
What are the major symptoms of graft-vs.-host disease? |
|
Definition
maculopapular rash, jaundice, hepatosplenomegaly, and diarrhea. |
|
|
Term
What B- and T- cell deficiency, assoc. with IgA deficiency, presents with cerebellar problems and spider angiomas? |
|
Definition
|
|
Term
What causes the tissue damage associated with Serum sickness? |
|
Definition
formation of immune complexes of foreign particles and Abs that deposit in membranes where they fix complement |
|
|
Term
What class of MHC proteins are the main determinants of organ rejection? |
|
Definition
|
|
Term
What complement components can cause anaphylaxis? |
|
Definition
|
|
Term
What components of the alternative complement pathway make the C3 convertase? |
|
Definition
|
|
Term
What components of the alternative complement pathway make the C5 convertase? |
|
Definition
|
|
Term
What components of the classic complement pathway make the C3 convertase? |
|
Definition
|
|
Term
What components of the classic complement pathway make the C5 convertase? |
|
Definition
|
|
Term
What components of the complement pathway are deficient in Neisseria sepsis? |
|
Definition
The MAC complex--(C5b, C6, C7, C8, C9) |
|
|
Term
What cytokines attract and activate neutrophils? |
|
Definition
|
|
Term
What disease is associated with a X-linked defect in a tyrosine-kinase gene associated with low levels of all classes of immunoglobulins? |
|
Definition
Bruton's agammaglobulinemia |
|
|
Term
What disease is associated with anti-epithelial cell autoantibodies? |
|
Definition
|
|
Term
What disease is associated with anti-microsomal autoantibodies? |
|
Definition
|
|
Term
What does a deficiency of C1 esterase inhibitor cause (in the complement cascade)? |
|
Definition
angioedema because of overactive complement |
|
|
Term
What does a deficiency of C3 cause (in the complement cascade)? |
|
Definition
can lead to severe, recurrent pyogenic sinus and respiratory tract infections. |
|
|
Term
What does deficiency of decay-accelerating factor (DAF) in the complement cascade cause? |
|
Definition
leads to paroxysmal nocturnal hemoglobinuria (PNH) |
|
|
Term
What does Job's syndrome classically present with? |
|
Definition
recurrent 'cold' (noninflamed) staphylococcal abscesses |
|
|
Term
What does TNF-a stimulate dendritic cells to do during the acute phase response? |
|
Definition
TNF-a stimulates their migration to lymph nodes and their maturation for the initiation of the adaptive immune response. |
|
|
Term
What elements of the complement cascade made the Membrane Attack Complex (MAC)? |
|
Definition
|
|
Term
What Ig is found in secretions as a monomer or a dimer? |
|
Definition
|
|
Term
What Ig is found in secretions as a monomer or a pentamer? |
|
Definition
|
|
Term
What immune deficiency disease has an autosomalrecessive defect in phagocytosis that results from microtubular and lysosomal defects of phagocytic cells? |
|
Definition
|
|
Term
What immune deficiency is associated with elevated IgA levels, normal IgE levels, and low IgM levels? |
|
Definition
|
|
Term
What immune deficiency presents with tetany owing to hypocalcemia, congenital defects of the heart and great vessels, and recurrent viral, fungal, and protozoal infections? |
|
Definition
Thymic aplasia (DiGeorge syndrome) |
|
|
Term
What immunoglobulin isotype has the lowest concentration in serum? |
|
Definition
|
|
Term
What immunoglobulin isotype is involved in type-I hypersensitivity reactions? |
|
Definition
|
|
Term
What immunoglobulin isotype is produced in the primary response to an antigen and is on the surface of B cells? |
|
Definition
|
|
Term
What immunoglobulin isotype mediates immunity to worms? |
|
Definition
|
|
Term
What immunoglobulin isotype prevents the attachment of bacteria and viruses to mucous membranes? |
|
Definition
|
|
Term
What immunoglobulins bind and activate the classic complement pathway? |
|
Definition
IgG and IgM (the Fc portion) |
|
|
Term
What interleukin induces naive helper T-cells to become TH1 cells? |
|
Definition
|
|
Term
What interleukin induces naive helper T-cells to become TH2 cells? |
|
Definition
|
|
Term
What interleukin stimulates the growth of both helper and cytotoxic T-cells? |
|
Definition
|
|
Term
What is Chronic mucocutaneous candidiasis? |
|
Definition
T-cell dysfunction specifically against Candida albicans. |
|
|
Term
What is important about the CD3 complex? |
|
Definition
It is a cluster of polypeptides associated with a T-cell receptor and is important in signal transduction. |
|
|
Term
What is the cellular process that causes type I hypersensitivity? |
|
Definition
Ag cross-links IgE on presensitized mast cells and basophils, triggering the release of vasoactive amines. |
|
|
Term
What is the cellular process that causes type II hypersensitivity? |
|
Definition
IgM, IgG bind to Ag on 'enemy' cell, leading to lysis (by complement) or phagocytosis (its cytotoxic). |
|
|
Term
What is the main antibody in the secondary immune response? |
|
Definition
|
|
Term
What is the most abundant immunoglobulin isotype? |
|
Definition
|
|
Term
What is the most common selective immunoglobulin deficiency? |
|
Definition
|
|
Term
What is the rise in temperature during the acute phase response help do (3 things?) |
|
Definition
(1) increase specific immune response (2) increase antigen processing (3) decrease viral and bacterial replication |
|
|
Term
What is the triad of symptoms seen with Wiskott-Aldrich syndrome? |
|
Definition
recurrent pyogenic infections, eczema, and thrombocytopenia |
|
|
Term
What kind of autoantibodies are associated with CREST/ Scleroderma? |
|
Definition
anti-centromere antibodies |
|
|
Term
What kind of autoantibodies are known as rheumatoid factor? |
|
Definition
|
|
Term
What kind of immunity (antibody-mediated or cell mediated) is involved in autoimmunity? |
|
Definition
antibody-mediated immunity (B cells) |
|
|
Term
What kind of immunity (antibody-mediated or cell mediated) is involved in graft and tumor rejection? |
|
Definition
cell mediated immunity (T cells) |
|
|
Term
What kind of transplant rejection is reversible with immunosuppressants such as cyclosporin and OKT3? |
|
Definition
acute transplant rejection |
|
|
Term
What kinds of adjuvants are included in human vaccines? |
|
Definition
aluminum hydroxide or lipid |
|
|
Term
What kinds of cells have class II MHC proteins? |
|
Definition
antigen-presenting cells (e.g. macrophages and dendritic cells) |
|
|
Term
What parasites have antigen variation? |
|
Definition
trypanosomes (programmed rearrangement) |
|
|
Term
What symptoms characterize the Arthus reaction and what causes them? |
|
Definition
edema, necrosis, and activation of complement due to the Ag-Ab complexes that form in the skin following intradermal injection of Ag. |
|
|
Term
What type of cell secretes IL-3? |
|
Definition
|
|
Term
What type of cells does gamma interferon stimulate? |
|
Definition
|
|
Term
What type of hypersensitivity reaction is the Arthus reaction? |
|
Definition
|
|
Term
Where does the alternative complement pathway occur? |
|
Definition
|
|
Term
Where does the classic complement pathway occur? |
|
Definition
antigen-antibody complexes |
|
|
Term
Where is the defect in SCID? |
|
Definition
the defect is in early stemcell differentiation, leading to B- and T-cell deficiency |
|
|
Term
Which interleukin causes fever? |
|
Definition
|
|
Term
Which interleukin enhances the synthesis of IgA? |
|
Definition
|
|
Term
Which interleukin stimulates the production and activation of eosinophils? |
|
Definition
|
|
Term
Which interleukin supports the growth and differentiation of bone marrow stem cells? |
|
Definition
|
|
Term
Which is the only type of cellmediated hypersensitivity reaction, and thus not transferable by serum? |
|
Definition
|
|
Term
Wiskott-Aldrich syndrome is a defect in the ability to mount what immune response? |
|
Definition
an IgM response to capsular polysaccharides of bacteria. |
|
|
Term
With what disease are antihistone autoantibodies associated? |
|
Definition
|
|
Term
With what disease are antinuclear antibodies associated? |
|
Definition
|
|
Term
Aspiration pneumonia is usually caused by… |
|
Definition
|
|
Term
Atypical pneumonia is usually caused by… |
|
Definition
- Mycoplasma - Legionella - Chlamydia |
|
|
Term
Bug Hints: Branching rods in oral infection = |
|
Definition
|
|
Term
Bug Hints: Currant jelly sputum = |
|
Definition
|
|
Term
Bug Hints: Dog or cat bite = |
|
Definition
|
|
Term
Bug Hints: Dog or cat bite = |
|
Definition
|
|
Term
Bug Hints: Pediatric Infection = |
|
Definition
H. influenzae (including epiglottitis) |
|
|
Term
Bug Hints: Pneumonia in CS, burn infection = |
|
Definition
|
|
Term
Bug Hints: Pus, Empyema, Abscess = |
|
Definition
|
|
Term
Bug Hints: Sepsis/Meningitis in Newborn = |
|
Definition
|
|
Term
Bug Hints: Surgical wound = |
|
Definition
|
|
Term
Bug Hints: Traumatic open wound = |
|
Definition
|
|
Term
Incidence of what cause of mengitis has decreased with a vaccine? |
|
Definition
Incidence of H. influenze meningitis has decreased greatly with introduction of H. influenzae vaccine in the last 10-15 years |
|
|
Term
Most osteomyelitis occurs in what age group? |
|
Definition
|
|
Term
Neonatal pneumonia is usually caused by… |
|
Definition
- Group B streptococci - E. coli |
|
|
Term
Nosocomial pneumonia is usually caused by… |
|
Definition
- Staphylococcus - gramnegative rods |
|
|
Term
PID includes what disorders in the body? |
|
Definition
salpingitis, endometritis, hydrosalpinx, tubo-ovarian abscess |
|
|
Term
PID is likely caused by what two organisms? What are the characteristics of the disease caused by each organism? |
|
Definition
-Chlamydia trachomatis: subacute, often undiagnosed - N. gonorrhoeae:acute, high fever |
|
|
Term
Pneumonia in immunocompromised patients is caused by… |
|
Definition
- Staphylococcus - gramnegative rods - fungi - viruses - Pnemumocystis carinii (with HIV) |
|
|
Term
Pneumonia in the alcoholic/IV drug user is usually caused by… |
|
Definition
- S. pneumoniae - Klebsiella - Staphylococcus |
|
|
Term
Postviral pneumonia is usually caused by… |
|
Definition
- Staphylococcus - H. influenzae |
|
|
Term
Salpingitis is a risk factor for… |
|
Definition
- ectopic pregnancy - infertility -chronic pelvic pain - adhesions |
|
|
Term
UTIs are found in men in which 2 age groups? |
|
Definition
Babies with congenital defects and Elderly with enlarged prostates |
|
|
Term
UTIs are mostly caused how? |
|
Definition
|
|
Term
What's the likely cause of osteomyelitis in a pt where you have no other information? |
|
Definition
|
|
Term
What 2 pathogens likely cause nosocomial infections associated with urinary catherization? |
|
Definition
E. coli, Proteus mirabilis |
|
|
Term
What 2 pathogens likely cause nosocomial infections in the newborn nursery? |
|
Definition
|
|
Term
What 3 UTI-causing organisms are often nosocomial and drugresistant? |
|
Definition
- Serratia marcescens - Enterobacter cloacae - Klebsiella pneumoniae - Proteus mirabilis - Pseudomonas aeruginosa |
|
|
Term
What 7 organisms are associated with UTIs? |
|
Definition
- Serratia marcescens - Staphylococcus saprophyticus - E. coli - Enterobacter cloacae - Klebsiella pneumoniae - Proteus mirabilis - Pseudomonas aeruginosa [HINT: SEEKS PP] |
|
|
Term
What abnormal lab result is often seen in osteomyelitis patients? |
|
Definition
|
|
Term
What are 4 clinical findings of Pyelonephritis? |
|
Definition
- fever - chills - flank pain - CVA tenderness [c/c with UTI] |
|
|
Term
What are 4 clinical findings of UTIs? |
|
Definition
- diysuria - frequency - urgency - suprapubic pain [c/ c with pyelonephritis] |
|
|
Term
What are the 2 most common causes of nosocomial infections? |
|
Definition
- E. coli causes UTI - S. aureus causes wound infection |
|
|
Term
What are the 3 most common causes of UTI in young ambulatory women? |
|
Definition
1. E. coli (50-80%) 2. Staphylococcus saprophyticus (10-30%) 3. Klebsiella (8-10%) |
|
|
Term
What are the common causes of hospital-acquired UTIs? |
|
Definition
- E. coli - Proteus - Klebsiella - Serratia - Pseudomonas |
|
|
Term
What are the common causes of meningitis in 6-60y/o? |
|
Definition
- N. MENINGITIDIS - Enteroviruses - S. pneumoniae - HSV |
|
|
Term
What are the common causes of meningitis in 60+ y/o? |
|
Definition
- S. PNEUMONIAE - Gramnegative rods - Listeria |
|
|
Term
What are the common causes of meningitis in children (6mo-6y/o)? |
|
Definition
- S. pneumoniae - N. meningitidis - H. influenzae B - Enteroviruses |
|
|
Term
What are the common causes of meningitis in HIV pts? |
|
Definition
- Cryptococcus - CMV - toxoplasmosis (brain abscess) JC virus (PML) |
|
|
Term
What are the common causes of meningitis in newborns (0-6mos)? |
|
Definition
- GROUP B STREPTOCOCCI - E. COLI - Listeria |
|
|
Term
What are the common causes of osteomyelitis in those with prosthetic replacements? |
|
Definition
S. aureus and S. epidermidis |
|
|
Term
What are the common causes of pneumonia in adults 18-40 y/o? |
|
Definition
- Mycoplasma - C. pneumoniae - S. pneumoniae |
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Term
What are the common causes of pneumonia in adults 40-65 y/o? |
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Definition
- S. pneumoniae - H. influenzae - Anaerobes - Viruses - Mycoplasma |
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Term
What are the common causes of pneumonia in children (6wk-18y)? |
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Definition
- Viruses (RSV) - Mycoplasma - Chlamidia pneumonia S. pneumoniae |
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Term
What are the common causes of pneumonia in the elderly? |
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Definition
- S. pneumoniae - Anaerobes - Viruses - H. influenzae - Gram-neg. rods |
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Term
What are the CSF finings in bacterial meningitis (pressure, cell type, protein and sugar levels)? |
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Definition
- Pressure: incr. - Cell type: incr. PMNs - Protein: incr - Sugar: decr |
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Term
What are the CSF finings in bacterial meningitis (pressure, cell type, protein and sugar levels)? |
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Definition
- Pressure: nl or incr. - Cell type: incr. lymphocytes - Protein: nl - Sugar: nl |
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Term
What are the CSF finings in fungal/TB meningitis (pressure, cell type, protein and sugar levels)? |
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Definition
- Pressure: incr. - Cell type: incr. lymphocytes - Protein: incr - Sugar:decr. |
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Term
What are the dominant normal florae in the colon? |
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Definition
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Term
What are the dominant normal florae in the vagina? |
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Definition
Lactobacillus, colonized by E. coli and group B strep |
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Term
What are the predisposing factors of UTIs? |
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Definition
- flow obstruction - kidney surgery - catherization - gynecologic abnormailities - diabetes - pregnancy |
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Term
What infections are dangerous in pregnancy? |
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Definition
- Toxoplasma - Rubella - CMV - HSV/HIV -Syphilis [HINT: ToRCHeS] |
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Term
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Definition
Cervical motion tenderness associated with PID |
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Term
What is the 2nd leading cause of community-acquired UTI in sexually active women? |
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Definition
Staphylococcus saprophyticus |
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Term
What is the characterisitc of Trichomonas on a slide? |
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Definition
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Term
What is the common cause of osteomyelitis in drug addicts? |
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Definition
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Term
What is the common cause of osteomyelitis in most people? |
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Definition
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Term
What is the common cause of osteomyelitis in sickle cell pts? |
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Definition
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Term
What is the common cause of osteomyelitis in the sexually active? |
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Definition
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Term
What is the common cause of osteomyelitis in the vertebra? |
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Definition
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Term
What is the dominant normal flora contributes to dental plaque? |
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Definition
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Term
What is the dominant normal flora in the nose? |
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Definition
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Term
What is the dominant normal flora in the oropharynx? |
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Definition
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Term
What is the dominant normal flora on the skin? |
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Definition
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Term
What is the most common STD in the U.S.? |
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Definition
Chlamydia trachomatis causes 3-4 million cases per year |
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Term
What organism can you presume is causing a nosocomial infection if respiratory equipment or burns are involved? |
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Definition
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Term
What organism is the leading cause of UTI and shows a metallic sheen on EMB agar? |
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Definition
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Term
What pathogen is associated with hyperalimentation? |
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Definition
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Term
What pathogen is associated with water (ie. aerosols)? |
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Definition
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Term
What pathogen likely causes nosocomial infections in the renal dialysis unit? |
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Definition
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Term
What population does not have any flora? |
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Definition
Neonates delivered by csarean section have no flora but are rapidly colonized after birth |
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Term
What population does not have any flora? |
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Definition
Neonates delivered by csarean section have no flora but are rapidly colonized after birth |
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Term
What ratio is UTIs found more in women vs. men? Why? |
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Definition
10 to 1 because women have short urethrae more likely to be colonized by fecal flora |
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Term
What STD is associated with Argyll-Robertson pupil? |
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Definition
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Term
What STD is associated with clue cells? |
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Definition
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Term
What STD is associated with Genital warts and loilocytes? What is the causative agent? |
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Definition
- Condylomata acuminata - HPV 6 and 11 |
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Term
What STD is associated with jaundice? What is the causative agent? |
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Definition
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Term
What STD is associated with opportunistic infections, Kaposi's sarcoma, lymphoma? What is the causative agent? |
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Definition
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Term
What STD is associated with painful penile, vulvar or cervical ulcers? What's the causative agent? |
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Definition
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Term
What STD is associated with painful ulcers, lymphadenopathy, rectal strictures? What is the causative agent? |
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Definition
- Lymphogranuloma venereum - Chlamydia trachomatis |
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Term
What STD is associated with urethritis, cervicitis, conjuntivitis, Reiter's syndrome PID? What is the causative agent? |
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Definition
Chlamydia - Chlamydia trachomatis |
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Term
What STD is associated with vaginitis? What is the causative agent? |
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Definition
-Trichomoniasis - Trichomonas vaginalis |
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Term
What STD is characterized by painful genital ulcer? What is the causative agent? |
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Definition
- chancroid - Haemophilus ducreyi |
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Term
What STD is likely in a patient with a painless chancre? What causes it? |
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Definition
- 1' Syphilis - Treponema pallidum |
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Term
What STD is likely in a patient with fever, lymphadenopathy, skin rashes, condylomata lata? What causes it? |
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Definition
- 2' Syphilis - Treponema pallidum |
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Term
What STD is likely in a patient with gummas, tabes dorsalis, general paresis, aortitis, Argyll-Robertson pupil? What causes it? |
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Definition
- 3' Syphilis - Treponema pallidum |
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Term
What STD is likely in a patient with urethritis, cervicitis, PID, prostatitus, epididymitis, arthritis? What organism causes it? |
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Definition
- Gonorrhea - Neisseria gonorrhoeae |
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Term
What UTI-causing organism has a bue-green pigment, fruity odor and is usually nosocomial and drugresistant? |
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Definition
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Term
What UTI-causing organism is characterized by a large mucoid capsule and viscous colonies? |
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Definition
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Term
What UTI-causing organism is mobile, causing 'swarming' on agar and also produces urease and is associated with struvite stones? |
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Definition
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Term
What UTI-causing organism sometimes produces a red pigment, is often nosocomial and drug-resistant? |
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Definition
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