Allergy & Immunology 2% Flashcards
Hypersensitivity rxns
Type I: Immediate, IgE
Type II: Cytotoxic, IgG/M
Type III Immune complex IgG, M
Type IV: Cell Medidiated
Type I Hypersensitivity
Immediate, IgE
Weed, pollen, dust, grass, mold cat or Dog progeins (atopic), hives, utricaria, peanuts, shellfish, bee stings, drugs
Tyope II - Cytotoxic
Antibody mediated (no ab/ag complexes)
Hemolytic rxn, goodpastrure’s
hyperacute graft rejection
Type III Immune complex IgG/M
Serum sickness, SLE, Post Strep Glomerulonephritis, PAN, RA, Arthus rxn, hypersensitive Pneumonitis
Type IV Cell medicated
PPD, Poison Ivy, Nicketl, Type I DM, acute and chronic graft rejection, Latex
IgE
Type I
Cytotoxic cell mediated (Ab nwsuRWS XTRIRIZUX EZB(
Type II
Immune complex mediated
Type III
Cell mediated/delayed
Type IV
ABPA
Type I (mold)
Hyperseitivity pneumonitis
Type III
Rh incompatibility
Type II
ABO incomaptiblity
Type II
Arthus rxn
Type III (Immune complex dep mediated)
Serum Sickness
Type III
SLE, PAN, RA, Hep B
Type III (Hep C low complement)
PPD, Poison Ivy, Nickel, Latex
Type IV
Hyperacute graft rejection
Type II
Acute or chronic graft rejection
Type IV
Allergic Rhinitis/Urticaria
Type I
Wheal and flare
Type I
Pt with sore throat - hematuria _-> Pre-renal azotemia
Antigen-ab rxn (type III)
Pt receiving IV abx for endocarditis - pt c/o arthralgias - mechanism of arthralgia is….
immune complex depeostion - serum complement low
RAST (radioallergosorbent test
measures IgE in serum (quantitiative immunoglobulins)
Skin testing (pin prick test)
more specific and sensitive
Pt with rhinitis, occular itching exacerbated by pollen best test?
Pin Prick test
Can you do skin testing if pt on anti-histamine
No - reduces sensitivity for 7 days
Nursing student started using latex glove for first time and pw hives - best test to confirm?
RAST for allergy to latex
Can yo give allergy injections to ABPA?
NO!! will make it worse
Can you give allergy injections to prevent contrast dye rxn or hypersensivity pneumonitis
No not IgE mediated….
How can you dx ABPA
Serum IgE level
Effetive immunotherapy causes increas in what ab type
IgG
What med will you NOT use during immunotherapy
BB - will interfere with epi tx
Pt on BB - receives immunotx and gets anaphylactic rxn - in addition to epi what else to give?
glucagon to reverse BB effect