BIOL 212 Lecture Notes - Lecture 27: Type Ii Hypersensitivity, Penicillin, Splenomegaly
24 Jul 2020
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Document Summary
Abnormal condition characterized by an excessive reaction to a particular stimulus. Body"s immune system fails to protect itself against foreign material. Allergic reaction is triggered by an allergen. Ingested foods, penicillin and other antibiotics, grass, ragweed pollen, and bee or wasp stings. Occurs at the site where treatment or medication was administered. Antigen-antibody reaction stimulates a massive secretion of histamine. Insect stings, contrast media containing iodide, aspirin, antitoxins prepared with animal serum, allergens used in testing. Clinical conditions that destroy the body"s immune system in the last or final phase of a human immunodeficiency virus (hiv) infection, which primarily damages helper t-cell lymphocytes with cd 4 receptors. Large species-specific, herpes-type virus with a wide variety of disease effects. Causes serious illness in persons with aids, in newborns, and in individuals who are being treated with immunosuppressive drugs. Tissue damage resulting from exaggerated immune response. Syndrome involving a deficiency of one or more types of blood cells and an enlarged spleen.
