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HelpTest ID GIAR Giardia Antigen, Feces
Useful For
Sensitive screening for the detection of Giardia antigens present in fecal specimens
Testing Algorithm
The following algorithms are available:
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
FecalOrdering Guidance
Duodenal, colonic wash, or small bowel aspirates are not acceptable for this test. If giardiasis is suspected, order OPE / Ova and Parasite, Travel History or Immunocompromised, Feces.
Specimen Required
Submit only 1 of the following specimens:
Preferred:
Specimen Type: Preserved feces
Supplies:
-Formalin 10% Buffered Neutral 15 mL (T466)
-Stool Collection Kit, Random (T635)
Container/Tube:
Preferred: Fecal container with 10% buffered formalin preservative
Acceptable: SAF (sodium acetate formalin)
Specimen Volume: 5 grams
Specimen Stability Information: Ambient (preferred) 60 days
Acceptable:
Specimen Type: Unpreserved feces
Supplies:
-Stool container, Small (Random), 4 oz (T288)
-Stool Collection Kit, Random (T635)
Container/Tube: Fecal container
Specimen Volume: 5 grams
Specimen Stability Information: Frozen 60 days
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Fecal | Varies | |
Special Instructions
Reference Values
Negative
Day(s) Performed
Monday through Friday
CPT Code Information
87329
Report Available
1 to 3 daysReject Due To
| Grossly bloody feces (containing no visible specimen) Very mucoid feces Specimens preserved in ECOFIX (green cap), C and S (orange cap), or merthiolate formalin (MF) Duodenal aspirates Small bowel aspirates |
Reject |
Forms
If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
-Microbiology Test Request (T244)