wheal-and-flare reaction
Also found in: Acronyms.
wheal-and-er·y·the·ma re·ac·tion
the characteristic immediate reaction observed in an allergy skin test; within 10-15 minutes after injection of antigen (allergen), an irregular, blanched, elevated wheal appears, surrounded by an area of erythema (flare).
Synonym(s): wheal-and-flare reaction
Farlex Partner Medical Dictionary © Farlex 2012
wheal-and-flare reaction
Triple response of Lewis Immunology A series of 3 sequential responses that occur in skin subjected to minor trauma, caused by tissue release of histamine; WFR tests immediate hypersensitivity–'reaginic' or allergic reaction to an antigen, and can be transferred to a nonallergic person. See P-K test.McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
wheal-and-er·y·the·ma re·ac·tion
(wēl er'i-thē'mă rē-ak'shŭn)The characteristic immediate reaction observed in the skin test; within 10-15 minutes after injection of antigen (allergen), an irregular, blanched, elevated wheal appears, surrounded by an area of erythema (flare).
Synonym(s): wheal-and-flare reaction.
Synonym(s): wheal-and-flare reaction.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012