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11.06
Immunity complications
Term | Definition |
---|---|
acquired immunodeficiency syndrome (AIDS) | immune system failure resulting from infection with HIV infects certain T cells and interferes w/ immunity |
allergen | a substance that causes an allergic response |
allergy | hypersensitivity |
anaphylactic reaction | an exaggerated allergic reaction to a foreign substance can lead to death from circulatory collapse and respiratory distress if untreated |
angiodema | localized edema with large hives/wheals similar to uticaria but involves deeper layers of the skin and subcutaneous tissue |
autoimmune disease | a condition in which the immune system produces antibodies against a person's own tissues |
CD4 + T lymphocyte count | a count of T cells with CD4 receptors for the AIDS virus less than 200/µL of blood signifies severe immunodeficiency |
delayed hypersensitivity reaction | am allergic reaction involving T cells that takes at least 12 hours to develop |
epinephrine (adrenaline) | a stimulant produced by the adrenal glands and sympathetic NS activates the bodily systems needed to meet stress can be used as a drug to treat anaphylaxis and shock |
human immunodeficiency virus (HIV) | the virus that causes AIDS |
hypersensitivity | an immunologic reaction to a substance that is harmless to most allergy |
immunodeficiency | a congenital or acquired failure of the immune system to protect against disease |
Kaposi sarcoma | cancerous lesions of the skin and other tissues comomon in those with AIDS |
Sjögren syndrome | an autoimmune disease resulting from a dysfunction of exocrine glands, affecting the secretion of bodily fluids |
systemic lupus erythmatosus | inflammation of connective tissue that affects the skin and other organs patients are sensitive to light and may have a red butterfly-shaped rash over the nose and cheeks |
systemic sclerosis | a diffuse connective tissue disease that may involve any bodily system AKA scleroderma |
urticaria | a skin reaction accompanied by round, raised eruptions/wheals and itching AKA hives |