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Test Code
GIAG
Test Name
Giardia and Cryptosporidium Antigen, Stool
CPT Codes
87328, 87329
Included Tests
  • Giardia Antigen
  • Cryptosporidium Antigen
Expected Turnaround Time
1 - 3 days
Clinical Utility

Giardiasis caused by Giardia duodenalis (also known as G. lamblia and G. intestinalis) is the most common parasitic infection in the US and is common in children, travelers, and campers/hikers. Cryptosporidiosis caused by Cryptosporidium species is the leading cause of waterborne disease outbreaks in the US and occurs following exposure to contaminated recreational waters or other contaminated sources such as food. Proper diagnosis of these organisms facilitates appropriate treatment and management of these diseases. Testing is recommended in individuals with persistent diarrhea or with known risk factors.
Specimen and Container Info

Specimen: Stool

Collection Container: Para-Pak containing 10% Formalin or Cary-Blair Transport
Collection Instructions

Collection in Para-Pak:

  1. Fill collection container to the fill line.
  2. Recap and shake the vial to distribute the sample in the preservative.
Transport Instructions

Transport to the laboratory at room temperature.
Stability Requirements

Room Temperature

7 days

Refrigerated

7 days
Methodology
Lateral Flow Immunoassay
Performing Location
Roble Road Core Laboratory
Alternate Names
  • Giardia duodenalis
  • Giardia lamblia
  • Giardia intestinalis
  • Crypto Antigen
Testing Schedule
Routine, Monday-Friday - no holidays
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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