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10 Cards in this Set
- Front
- Back
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Type 1 Hypersensitivity reaction
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RAPID HYPERSENSITIVITY REACTIONS
anaphylaxis=vessel dilation, dc C/O, bronchoconstriction |
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Type 2 Hypersensitivity reaction
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CYTOTOXIC REACTIONS
body makes special autoantibodies directed against self-cells |
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Type 3 Hypersensitivity reaction
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IMMUNE COMPLEX REACTIONS
Excess antigens cause immune complexes to form in the blood. These circulating complexes usually lodge in small blood vessels Kidneys, skin, joints |
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Type 4 Hypersensitivity reaction
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DELAYED HYPERSENSITIVITY REACTIONS
Reactive cell is the T-lymphocyte (T-cell) Local collection of lymphocytes & macrophages cause edema, induration, ischemia, & tissue damage |
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Type 5 Hypersensitivity reaction
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STIMULATORY REACTIONS
Excess stimulation of a normal cell receptor by an autoantibody → continuous “turned-on” state |
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Example of type 1 hypersensitivity reaction
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anaphylaxis
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Example of type 2 hypersensitivity reaction
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Hemolytic anemia
Myasthenia gravis Goodpastures syndrome Thrombocytopenic purpura Hemolytic transfusion reactions |
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Example of type 3 hypersensitivity reaction
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Rheumatoid arthritis
Lupus Vasculitis |
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Example of type 4 hypersensitivity reaction
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Positive purified protein derivative(PPD
Contact dermatitis Poison Ivy Insect stings Transplant rejection Sarcoidosis |
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Example of type 5 hypersensitivity reaction
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Graves disease
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