Definition: A severe, life-threatening allergic reaction. Severe symptoms include difficulty breathing due to airway constriction, complete obstruction of the airway, skin and intestinal irritation, and abnormal heart rhythms. Emergency treatment is necessary to prevent death.
Anaphylaxis
By Mark Foley, D.O., About.com Guide
Updated: January 07, 2009
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
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