Prolonged Cardiovascular Collapse Due to Unrecognized Latex Anaphylaxis

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We present a case of a prolonged anaphylactic reaction that occurred in temporal relationship to the administration of cefazolin. Subsequent allergy testing was positive for latex and negative for cefazolin—both unexpected results. Our case illustrates that medications administered before the onset of anaphylaxis should not be assumed to be the causative allergen and that a latex allergy should be considered in the differential diagnosis. Because the etiology of an anaphylactic reaction cannot be immediately determined, patients experiencing intraoperative cardiovascular collapse should be treated in a latex-free environment.

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