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Chapter 25 Bacterial Infection
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Pharmacology
Undergraduate 2
02/27/2012

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Term
pathogen
Definition
organism that causes disease
Term
pathogenicity
Definition
ability of organism to cause infection
Term
virulence
Definition
ability to produce disease when present in very small numbers
Term
toxins
Definition
disrupt normal cell activity
Term
anti-infective
Definition
drug effective against pathogens such as bacterial, fungal, viral, or parasitic infection
Term
antibiotics
Definition
natural substance produced by baceria that can kill other bacteria
Term
Staining
Definition
gram positive or gram negative
Term
shape
Definition
baccilli (rods) cocci (spheres) spirilla (spirals)
Term
Ability to use oxygen
Definition
aerobic (uses oxygen) anarobic grows without oxygen
Term
bacterocidal
Definition
kills bacteria
Term
bacteriostatic
Definition
slows the growth of bacteria
Term
mutation
Definition
errors while duplicating their genetic code
Term
acquired resistance
Definition
infection resistive to medication
Term
pasmids
Definition
bacterial may pass the resistance gene to other bacteria by transferring small pieces of cicular dna called this
Term
60% of staphylococcus is resistant to _____________ now.
Definition
penicillins
Term
Nosocomial infections
Definition
MRSA and VRE
Term
prophylactic or chemoprophylaxis
Definition
taking medication to prevent an infection
Term
If infection is severe and C&S is not complete this is given
Definition
broad spectrum antibiotic
Term
after lab testing is done and C&S determines the pathogen this is given
Definition
narrow-spectrum antibiotic(cause less adverse effects)
Term
One common adverse effect of anti-infective drugs is appearance of_____________
Definition
superinfections
Term
S/S of superinfection includes
Definition
diarrhea, bladder pain, painful urination, abnormal vaginal discharge
Term
What is more likely to cause a superinfection?
Definition
broad spectrum antibiotics
Term
The structure of penicillin that is responsible for antibacterial activity?
Definition
beta-lactum ring
Term
some bacteria secrete this which splits the beta-lactum ring
Definition
beta lactamase or penicillinase
Term
adverse effects of penicillin
Definition
allergy is most common which includes rash, fever and anaphylaxis. Less common includes skin rashes, and low RBC, WBC, or platelets
Term
cephalosporins are classified by their___________
Definition
generation 1st, 2nd, 3rd, 4th.
Term
cephalosporins are used for
Definition
gram negative infection and for patients who cannot tolerate penicillins
Term
5-10% who are allergic to penicillins might be allergic to this too.
Definition
Cephalosporins
Term
cephalosporins are contraindicated if_________
Definition
the patient has a history of allergic reaction to penicillins
Term
Examples of tetracyclines
Definition
democlocycline (Declomycin), doxycycline (vibramycin) minocycline (sumycin) tigecycline (tygacil)
Term
Examples of cephalosporins
Definition
1st gen: cefadroxil (duricef), cefazolin (ancef), cephalexin (keflex)
2nd gen: cefaclor (Ceclor), cefotetan (cefotan), cefprozil (cefzil), cefuroxime (ceftin)
3rd gen: cefdinir (omnicef), cefditoren (spectracef), cefixime (suprax), cefotaxime (claforan)
ceftriaxone (rocephin)
Term
tetracyclines
Definition
exert a bacteriostatic which inhibits bacterial protein synthesis
Term
This is used to treat rocky mountain spotted fever, typhus, cholera, lyme disease, ulcers caused by helicobactor pylori, and chlamydia infections
Definition
tetracyclienes
Term
adverse effect of tetracyclines
Definition
gastric distress, photosensitivity
Term
This cuases tetracyclines to decrease absorption by 50%
Definition
Milk
Term
Tetracycline causes________ in children under 9
Definition
permanent yellowing of teeth
Term
Macrolides are safe alternatives to___________
Definition
penicillin
Term
Examples of Macrolides
Definition
azithromycin (zithromax), clarithromycin (biaxin), dirithromycin (dynabac), erythromycin (E-mycin, Erythrocin)
Term
Pharm class antibacterial
Ther Class macrolide protein synthesis inhibitor
Definition
Erythromycin (E-mycin, Erythrocin)
Term
Adverse effects of macrolides
Definition
mild gi upset, diarrhea, abd pain
Term
Microlides treat:
Definition
whooping cough, legionnaire's disease, and infections by streptococcus, H. Influenzae, M. pneumoniae, and chlamydia.
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