Describe the 4 types of hypersensitivity reactions and give examples of each
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13 Terms
Type 1 Immediate hypersensitivity
immediate rapid allergic reaction
type 1 causes release of…
histamine
allergic rhinitis
environmental allergies
anaphylaxis
severe allergic reaction causing death that can happen within min
Type ii cytotoxic hypersensitivity
antibodies attack and damage your own cells causing cell destruction and lysis
incompatible blood transfusion is a example of
Type ii cytotoxic hypersensitivity
Type III immune complex hypersensitivity
antibodies bind to antigens creating clumps of immune complexes (too many form that body can't clear them)
Complexes are deposited in tissues causing
inflammation and tissue damage
lupus and rheumatoid arthritis are examples of….
Type III immune complex hypersensitivity
lupus
systemic autoimmune disease where body attacks its own tissues
rheumatoid arthritis
redness and deformities in knuckles)
Type IV - delayed hypersensitivity
T cells causing the reaction rather than antibody B cells causing inflammation and tissue damage thats delayed
poison ivy, transplant rejection, TB skin test are exmaples of…
Type IV - delayed hypersensitivity