Fecal Immunochemical Test (FIT) for Occult Blood, Stool (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
- For community outpatients
Specimen Information
Specimen types accepted
- Stool
Specimen collection container
- Provide in FIT kit
Collection procedure
-
See Roy Romanow Provincial Laboratory FIT Testing Sample Collection Kit Instructions
Transport and stability
Once in the collection container
- 15 days at room temperature
- 30 days refrigerated
Rejection criteria
- Specimens received where the collection protocols were not followed
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Testing Information
Clinical interpretation
- Identifies the globin component of human hemoglobin in fecal specimens with a high degree of analytical sensitivity
- False negative results may occur since bowel lesions, including some colorectal cancers and significant polyps may not bleed at all or may bleed intermittently, or the blood may not be uniformly distributed in a fecal specimen and therefore missed during collection
- False positive results may occur due to certain medications that may cause gastrointestinal irritation resulting in occult bleeding
Performance
Days/times performed
Availability |
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Testing site |
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Maximum laboratory time
- 3 day turnaround time by testing laboratory
Last Updated: October 16, 2024