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Sensitization:
the initial exposure of an individual to a specific allergen, resulting in an immune response; further exposure usually induces a stronger response.
Serum:
the clear portion of any animal fluid separated from its solid elements; e.g. the fluid that separates from clotted blood.
Shock:
a condition of acute peripheral circulatory failure due to derangement of circulatory control or loss of circulating fluid. It is characterized by hypotension, coldness of the skin, rapid heart rate (usually), and often anxiety. Anaphylactic s., the violent onset of symptoms produced on second exposure to allergenic protein in an anaphylactic individual.
Skin test:
the application of a pollen or protein onto a skin abrasion or by intradermal injection in order to assess allergic sensitivity.
Steroid:
a group name for compounds that contain a specific chemical ring system; included are a group of hormones produced by the adrenal cortex and synthetically; they may be administered to reduce the symptoms of an allergic reaction.
Stridor:
a harsh, high-pitched breath sound associated with significant laryngeal obstruction.
Subcutaneous:
beneath the skin.
Sulfite:
any salt of sulfurous acid. Often added to food or medication as a preservative.
Systemic:
pertaining to or affecting the body as a whole.
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