When is the measurement of 5-Hydroxyindoleacetic acid levels indicated in the evaluation of anaphylaxis?

Updated: May 16, 2018
  • Author: S Shahzad Mustafa, MD; Chief Editor: Michael A Kaliner, MD  more...
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If carcinoid syndrome is considered, urinary 24-hour 5-hydroxyindoleacetic acid levels should be measured.

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