Allergy and Anaphylaxis

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• A recurrence of anaphylactic symptoms hours after the initial reaction has resolved, even without re-exposure.

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• The first-line medication for anaphylaxis — a potent alpha- and beta-agonist that reverses bronchospasm, vasodilation, and edema.

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• A pre-filled, spring-loaded device delivering a single intramuscular dose of epinephrine — adult 0.3 mg, pediatric 0.15 mg.

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• Swelling of deeper skin and mucous membrane tissues — face, lips, tongue — that can compromise the airway.

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• Raised, itchy, often blanching wheals on the skin caused by histamine release.

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