How is the causative agent identified in anaphylaxis?

Updated: May 16, 2018
  • Author: S Shahzad Mustafa, MD; Chief Editor: Michael A Kaliner, MD  more...
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A thorough history remains the best test to determine a causative agent. For recurrent idiopathic episodes, a patient diary may be helpful to implicate specific foods or medications, including over-the-counter (OTC) products.

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