What is the role of peroxide-based tests in the workup of pediatric gastrointestinal (GI) bleeding?

Updated: Dec 19, 2018
  • Author: Wayne Wolfram, MD, MPH; Chief Editor: Robert K Minkes, MD, PhD  more...
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Answer

In all children, the presence of blood can be confirmed by the use of peroxide-based tests, such as the Hemoccult or Hematest for lower GI bleeding and Gastroccult for upper GI bleeding.

Certain ingestions, such as red meat, iron, and peroxidase-containing vegetables (eg, turnips, horseradish, broccoli, cauliflower, and cantaloupe), can give false-positive results.


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