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Pathophysiology
Dr. Pennington Exam 1
139
Medical
Undergraduate 3
01/16/2009

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Cards

Term
What is the concept of normalcy?
Definition
Being within certain limits that define the range of normal functioning.
Term
What is Etiology?
Definition
The cause of something.
Term
Is getting hit by a car an extrinsic factor for disease?
Definition
Yes
Term
Is smoking an intrinsic factor for disease?
Definition
No
Term
What is Atrophy?
Definition
The decrease or shrinkage in cellular size. Side note: If atrophy occurs in a sufficient number of an organ's cells, the entire organ shrinks or becomes atrophic.
Term
What is Hypertrophy?
Definition
An increase in the size of cells and consequently in the size of the affected organ. Side note: The cells of the heart and kidneys are particularly responsive to enlargement.
Term
Whether cells display atrophy or hypertrophy, what are the substances that make up the difference in size?
Definition
Endoplasmic reticulum, myofilaments, and mitochondria.
Term
What term refers to an increase in the number of cells resulting from an increased rate of cellular division?
Definition
Hyperplasia
Term
What is an example of the type of cells that are not able to be involved in hyperplasia, and what actions can these cells still do?
Definition
myocardial fibers, but they can still hypertrophy and atrophy.
Term
What is dysplasia?
Definition
Abnormal changes in the size, shape, and organization of mature cells.
Term
Explain the concept of disease.
Definition
It is when tissue acts in an exacerbated fashion, when cells begin to act out of the range of their "normal", or A deviation in a structure or function of the body that prevents the maintenance of homeostasis.
Term
Can injured cells recover or must they die?
Definition
they can recover
Term
Explain how cells under attack adapt.
Definition
Since cells don't like quick changes, they adapt slowly, and compensate for the change or abuse.
Term
What is another term for degenerative changes?
Definition
Sublethal changes
Term
What are the most coommon forms of cellular degenerative changes?
Definition
The accumulation of water in the cytoplasm, or the accumulation of fat in the cytoplasm.
Term
What three organs of the body does fat accumulate?
Definition
liver, heart, and kidneys
Term
What does necrotic mean?
Definition
Death
Term
What is coagulative necrosis?
Definition
Dead tissue that has kept it's architecture. e.g. frost bitten toe
Term
What is liquefactive necrosis?
Definition
Dead tissue that turns liquid
Term
What is caseous necrosis?
Definition
A cavity forming death process, with the combination of coagulative and liquefactive necrosis.
Term
What is gangrene?
Definition
Coagulative necrosis with a bacterial infection.
Term
The calcifying of tissue that is not wanted is known as what?
Definition
dystrophic calcification
Term
What is rigor mortis?
Definition
muscle stiffening after death
Term
What do we call the cooling of the body postmortem?
Definition
Algor mortis
Term
What is Liver mortis?
Definition
The pooling of the blood postmortem.
Term
Congenital diseases are...
Definition
present at birth.
Term
What is a phenotype?
Definition
It is the outward appearance of an individual, which is the result of both the genotype and environment.
Term
PKU
Definition
Phenylketonuria....an infant who has the inability to metabolize the amino acid phenylalanine.
Term
What are three things notorious for causing mutations?
Definition
radiation, some chemicals, and viruses
Term
What causes mono and a specific type of leukemia?
Definition
Epstein Barr Virus
Term
In PKU, what happens to the person?
Definition
Since the liver lacks the enzyme for the matabolism of phenylalanine into tyrosine, an accumulation of phenylalanine is the result. What is noticed is the delay of or absence of the mylenation of nerve cells. Also, fat accumulates in the brain and in the central nervous system, which gets in the way, so we see a higher incidence of mental retardation.
Term
Which amino acid can't people with albuminism break down?
Definition
Tyrosine
Term
What results from Albuminism?
Definition
Albinism, or People with very little pigment. Higher incidence of skin cancer, glaucoma, and cataracts.
Term
What is Glycogen Storage Disease?
Definition
When an individual can't store glycogen in the body. They tend to be underweight and hypoglycemic.
Term
What two diseases are predominantly in the jewish culture?
Definition
Tay-Sachs and Gauche Disease
Term
Vitamin A deficiencies cause what?
Definition
Night blindedness
Term
Vitamin D deficiencies cause what?
Definition
Poor calcification of skeleton and teeth
Term
What is the name for the process by which White cells are drawn to the area of infection?
Definition
Chemotaxis
Term
What is gramulomatous inflammation?
Definition
Inflammatory process in which the body tries to repair the wound or situation but can't. e.g. piece of foresepts in the body. This causes nodules from left over scare tissue.
Term
What is the major importance of vitamin K and where is this substance made by the body? What makes it?
Definition
Coagulation of the blood. In the intestines. E. Coli bacteria
Term
What vitamin deficiency causes beri beri? Who is at the biggest risk for this disease?
Definition
Thiamine B1. Alcoholics and individuals with eating disorders.
Term
What happens when there is a deficiency of B1?
Definition
Pyruvic Acid cannot go into the citric acid cycle and it accumulates
Term
What vitamin plays a role in neurotransmitters?
Definition
B6
Term
What vitamin shares similar characteristics as nicotine?
Definition
Niacin
Term
Which vitamin deficiency will cause problems with the oral cavity?
Definition
B2
Term
The best way to understand the concept of "normal" vs. "abnormal" s to see them as two points on a....
Definition
continuem
Term
The process of assigning a cause to a disease is called....
Definition
etiology
Term
Depriving the body of nutrition or oxygen causes what type of cellular injury?
Definition
Oxygen deficiency...Malnutrition
Term
Disrupting the cell to cell relationship is what type of cellular injury?
Definition
physical....hit by a car
Term
Disruption of the cell by bacteria, viruses, or parasites is what type f cellular injury?
Definition
Living agents....aids
Term
Disruption of the cells by environmental toxins is what type of cellular injury?
Definition
chemical.....workplace toxins
Term
A self eating process during which enzymes digest portions of the cell contained within cytoplasmic vacoules is called...
Definition
Autophagocytosis
Term
Liquified necrosis is only seen in brain tissue? t or f
Definition
True
Term
Pulmonary necrosis is an example of what type of necrosis?
Definition
Caseous necrosis
Term
When cells die, the living cells surrounding them respond to chemical changes by delivering fluid and cellular components. The term for this is...
Definition
Acute inflammatory reaction
Term
What are the two things that can go wrong with chromosomes?
Definition
Abnormal structure and abnormal number
Term
When abnormal chromosome is the direct cause of a disease this is called..
Definition
genetic disease
Term
Familial disease means it is genetic. T or F
Definition
False
Term
Can radiation alter genetic structure?
Definition
Yes
Term
Hemophilia is an example of which type of disease?
Definition
Sex linked
Term
A third degree burn effects which layer of skin?
Definition
Subcutaneous fat
Term
What are the four common categories of cellular injury?
Definition
physical, living agents, chemical, and oxygen deficiency
Term
What is autophagocytosis?
Definition
Term
Explain the relationship between cellular death and acute inflammatory reactions.
Definition
acute inflammotory reaction is designed to prevent cellular death
Term
Name a congenital disease.
Definition
Down's syndrome....anything that is given within the womb.
Term
What is cytogenetics?
Definition
The study of the chromosomal makeup of cells, their normal functions, and any deviation from that norm
Term
What is deficient or totally absent in PKU?
Definition
an enzyme from the liver that converts phenyalinine into tyrosine.
Term
What happens if PKU progresses?
Definition
Lots of times it results in mental retardation due to myelin sheath complications
Term
Does an individual with glycogen storage disease typically look hypoglycemic or hyperglycemic?
Definition
Hypoglycemic....remember that these people have the lack of glucose storage for the correct distribution of glucose in the blood, so they can easily have small amounts in their blood.
Term
Does Tay-Sachs disease involve neurological problems or liver complications?
Definition
Neurological issues
Term
What chromosome is problematic with down's syndrome?
Definition
21
Term
What are three characteristics of a down's patient?
Definition
eye abnormalities, immune systems not up to par, and brains are smaller
Term
If someone has a burn covering the back of the arm, the genitals, the front of the leg, and the upper part of the back, what percentage is burned according to the rule of nines?
Definition
23.5 percent
Term
Name the relation with each term...dolor, calor, rubor, and tumor.
Definition
dolor-pain, rubor-color-redness, tumor-swelling, calor-heat
Term
The movement of white cells into an area that is inflammed is called...
Definition
Chemotaxis
Term
what exudate has little protein and a lot or water?
Definition
transduate
Term
Which exudate has wbc's?
Definition
neutrophilic exudate
Term
What is the most prevalent antibody?
Definition
IgG
Term
Which antibody is found in gammaglobulin and in secretions of exocrin glands?
Definition
IgA
Term
This antibody is found almost exclusively in infants and children?
Definition
IgD
Term
This antibody is almost exclusively found to pay a role in food allergies?
Definition
IgE
Term
This antibody is found in very small amounts in the body, unless you have allergies...
Definition
IgE
Term
Can an antigen be pollen?
Definition
yes
Term
Where are fat soluble vitamins stored?
Definition
liver
Term
Which vitamins are toxic in large amounts?
Definition
fat-soluble vitamins
Term
Are water soluble vitamins stored in the body?
Definition
No
Term
What organ activates vitamin D?
Definition
kidneys
Term
Which vitamin is needed to activate coagulation?
Definition
vitamin k
Term
Vitamin E is absorbed in the body. T or F
Definition
False, only if the skin is broken does the vitamin get absorbed.
Term
What vitamin is associated with beri beri?
Definition
B1
Term
Is it possible to be deficient in B2?
Definition
No, not with how many foods contain this substance.
Term
What vitamin is sometimes used to treat peripheral neuropathy in patients with TB?
Definition
B6
Term
Does biotin have similiar effects as nicotine?
Definition
No, niacin does
Term
What are the four D's associated with Niacin deficiency?
Definition
Dermatitis, Diahrea, dementia, and death
Term
What skin condition is caused by Niacin deficiency?
Definition
Pellagra
Term
Is a transfusion reaction an antigen/antibody reaction?
Definition
Yes
Term
About how many different possible proteins can be attached to a single red blood cell?
Definition
134
Term
During a "type and crossmatch" what do we look for?
Definition
To see if the donor has an antibody that the recipient has that particular antigen, and vice versa.
Term
What are the chances of a blood transfusion recipient having an allergic reaction?
Definition
About 100%...we only test for about 30 antigens through the "type and crossmatch" so not all get tested for, so the chances are super high....that's why we give the patient an anti-histamine.
Term
Are all auto immune diseases more prevalent in men or woman?
Definition
woman
Term
What does SLE stand for?
Definition
Systemic Lupus Erythematosus
Term
During SLE, what gets pulled out of the white blood cell? What is in the white blood cell that is being attacked?
Definition
the nucleus.....A particular protein in the nucleus
Term
What organ is gonna be compromised with SLE?
Definition
Kidneys
Term
Nephrons get plugged up by what in the process of SLE?
Definition
The antigen/antibody complex formed by the protein from the nucleus of the WBC and the antibody.
Term
In rheumatoid what does the body find to look like an antigen?
Definition
A protein in the synovial fluid
Term
What happens when one losses the particular protein in the synovial fluid in rhuemotoid arthritis?
Definition
The joints lose their cushion and the patient begins to have bone to bone contact, causing major inflammation.
Term
What part of the body does Sjogren's Syndrome play a role?
Definition
membranes of the eyes....they get very dry
Term
Are viruses composed of both RNA or DNA or both?
Definition
They are only composed of either RNA or DNA, never both....this is why we don't consider them to be alive.
Term
What percentage of all the bacteria in the known universe cause problems for humans?
Definition
one percent
Term
What percentage of viruses in the known universe can cause problems in humans?
Definition
100%
Term
What enzyme do all viruses have?
Definition
reverse transcriptinase
Term
What does reverse transcriptinase do?
Definition
Changes RNA to DNA, which allows the virus to incorporate itself into our DNA.
Term
What does AZT, the drug for AIDS, do?
Definition
It interferes with the reverse transcriptinase, not allowing the AIDS virus to go from RNA into DNA.
Term
When a person has full blown aids, what percentage of lymphocytes are infected?
Definition
only 10%
Term
Why is HIV such a clever Virus?
Definition
Because it changes itself just a little every 7-10 days in order for the body not to be able to eradicate it.
Term
Explain the difference in Heterographs, autographs, isographs, and homographs.
Definition
Heterographs are between different species
Autographs are from one part of the body to the other. Isographs are between identical twins. Homographs are between the same species, but have different genetics.
Term
Which two graft options never have rejection?
Definition
Autographs, and Isographs
Term
What is the estimated count for people having HIV?
Definition
1 in every 250 people
Term
Why is HIV only in vaginal, sperm, and blood cells?
Definition
These cells have an exact fit for the HIV.
Term
What kind of infection is Candida? Is it prevalent or uncommon amongst AIDS patients?
Definition
Yeast infection...also known as thrush
It is very common in AIDS patients
Term
What is a subclinical infectiion?
Definition
An infection you got and didn't even know it.....no manifestations.
Term
What is an exotoxin?
Definition
The toxin a bacteria produces along the cell wall that is distributed amongst the surrounding tissue.
Term
How does the endotoxin come out of the bacteria?
Definition
When the bacteria die or is punctured or tramatized.
Term
Can endotoxins be just as dangerous as exotoxins?
Definition
Yes, because the the endotoxins are storing toxins. If the cell is killed (example e.coli cell) it releases its toxin upon its death.  It is best to remove an endotoxin gradually with a bacteriostatic, which stops the cell reproducing, thus it dies off gradually.
Term
T. Pallidum causes...
Definition
syphillus
Term
C. Tetani causes...
Definition
tetanus
Term
C. Perfringens cause...
Definition
gas gangrene
Term
All the "C." bacteria are what... Aerobic or anaerobic?
Definition
Anaerobic
Term
herpes simplex I causes...
Definition
fever blisters and cold sores
Term
Herpes simplex II causes...
Definition
Sexually transmitted disease...genital herpes
Term
Infectious Mono is caused by what virus
Definition
epstein bar virus
Term
What is the dose of drug which induces a specific clinical effect in 50 percent of subjects?
Definition
Effective dose or effective concentration
Term
What is the therapeutic index?
Definition
A measure of the safety of a drug; calculated by dividing the LD 50 by the ED 50.
Term
The closer to "1" means that the drug is safer according to the margin of safety? T or F
Definition
false, the further away the outcome is the "1" the safer it is.
Term
Draw a graph on half-life resulting in a plateau....use 2 gram dosing with a half-life of a day.
Definition
1-2grams, 2-3grams, 3-3.5grams, 4-3.75, 5-3.9, 6-3.95, 7-3.975......
Term
How long does it take a drug to reach plateau if the drug is administered repeatedly in the same dose?
Definition
Four half-lives
Term
What is peak concentration and trough concentration?
Definition
Peak is the highest point on the half-life graph and the trough is the lowest point once in plateau
Term
If the therapeutic range is small how do we make sure we don't make a patient either toxic or untherapeutic?
Definition
infuse the drugs, depot preperation, or reduce both the size of each dose and the dosing interval.
Term
Do all drugs play by the concept of half-lives?
Definition
No, alcohol and some others are eliminated at a constant rate regardless of the dose.
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