Which procedures are performed in the workup of food poisoning?

Updated: Jun 19, 2018
  • Author: Roberto M Gamarra, MD; Chief Editor: Praveen K Roy, MD, AGAF  more...
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Consider performing the following procedures when a stool examination is nondiagnostic, especially in immunocompromised patients:

  • Sigmoidoscopy/colonoscopy with biopsy

  • EGD with duodenal aspirate and biopsy

In patients with bloody diarrhea, sigmoidoscopy can be useful in diagnosing inflammatory bowel disease, antibiotic-associated diarrhea, shigellosis, and amebic dysentery.

See Workup for more detail.

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