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Test Code
ENHIA
Test Name
Entamoeba histolytica Antigen
CPT Codes
87337
Expected Turnaround Time
4 - 8 days
Clinical Utility
Test for persistent diarrhea (>14 days) or known risk factors if E. histolytica is the suspected infectious agent.
Specimen and Container Info

Specimen Type: Random Stool

Collection Container: Unpreserved Stool Transport Vial

Alternate Collection Container: Plastic Container (Preservative Free)

Desired Specimen Volume: 5 g
Collection Instructions
  1. Collect random stool in an unpreserved stool transport vial or sterile plastic container (preservative free).
Processing and Submission Instructions
  1. Transport stool in the original collection container.
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Refrigerated

48 hours

Frozen

14 days
Causes for Rejection
  • Specimens in media or preservatives
Methodology
Qualitative Enzyme Immunoassay
Reference Intervals

See patient report.
Alternate Names
  • E. histolytica Ag
  • Entamoeba histolitica Antigen
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, daily
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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