Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Defects in humoral immunity (B cell), increases the risk of these types of infections
|
Pyogenic:
Strep pneumoniae H.flu Staph aureus Pseudomonas |
|
|
Release of mast cell mediators triggers this type of hypersensitivity reaction
|
Type I: IgE antibody
Immediate hypersensitivity |
|
|
complement-mediated opsonization and phagocytosis triggers this type of hypersensitivity reaction
|
Type II: antibody mediated
Humoral antibodies participate in injuring cells by predisposing them to lysis or phagocytosis |
|
|
what is the immune mechanism of Type II hypersensitivity reaction
|
IgM, IgG antibodies against cell surface or extracellular matrix
|
|
|
Formation of immune complexes is characteristic of this type of hypersensitivity
|
Type III: Humoral antibodies bind antigen and activate complement
|
|
|
What is type IV hypersensitivity?
|
T-cell mediated: Cytokine mediated inflammation
|
|
|
what causes B-cells to produce IgE?
|
stimulation by an antigen-stimulated T-H2 cell
|
|
|
Name examples of Type I reactions
|
Anaphylactic
Atopic (urticaria,allergic rhinitis, atopic dermatitis, food allergies, asthma) |
|
|
Which foods are most reponsible for anaphylactic reactions?
|
peanuts
tree nuts shellfish |
|
|
Blood transfusion reactions and hemolytic disease of the newborn are examples of this type of hypersensitivity reaction
|
Type II
|
|
|
vasculitis in SLE and glomerulonephritis are caused by this type of reaction
|
Type III
Also responsible for: Serum sickness The Arthus reaction(localized tissue necrosis) |
|
|
Give examples of a delayed-type hypersensitivity Type IV reaction
|
TB test
Contact dermatitis(cosmetics, hair dyes, metals, topical drugs) |
|
|
Type of reaction caused by latex gloves
|
Can either be type I or type IV
|
