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Ann Emerg Med. 2002 Jun;39(6):677-9.

Immediate hypersensitivity reaction associated with the rapid infusion of Crotalidae polyvalent immune Fab (ovine).

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1
Department of Emergency Medicine, University of Virginia, Charlottesville, VA 22908-0699, USA. ch2xf@virginia.edu

Abstract

A 16-year-old boy presented to the emergency department with rapidly progressing extremity pain, edema, and ecchymosis after envenomation by a copperhead. Crotalidae polyvalent immune Fab (ovine) (CroFab; FabAV) was infused. Six vials were placed in 250 mL of normal saline solution, and the infusion was gradually increased. Fifty minutes after beginning, the infusion was increased to 640 mL/h. Within minutes of the rate increase, the patient experienced full-body urticaria, facial edema, voice change, and tachycardia. The infusion was stopped. Hydroxyzine pamoate, famotidine, methylprednisolone, and a 1-L bolus of normal saline solution were administered intravenously. The symptoms abated, and the remaining FabAV was infused at a slower rate without return of this reaction. This immediate hypersensitivity reaction was most likely a rate-related anaphylactoid reaction that has not been previously reported with FabAV.[Holstege CP, Wu J, Baer AB. Immediate hypersensitivity reaction associated with the rapid infusion of Crotalidae polyvalent immune Fab (ovine). Ann Emerg Med. June 2002;39:677-679.].

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PMID:
12023715
[Indexed for MEDLINE]

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