Immunological Fecal Occult Blood (iFOB) Test
- Fecal immunochemical tests do not detect upper gastrointestinal bleeding due to the breakdown of globin during intestinal transit
- Patients with hemorrhoids or females who are menstruating should not undergo occult blood testing until the bleeding has ceased.
- Urine or dilution of specimens with water from the toilet bowl may cause erroneous test results.
UFHPL Epic order code: LAB56100/LAB56101
For more information on proper collection procedures, visit the Hemosure website.
- Type: Random stool sample
- Container/Tube: Hemosure Fecal Occult Blood Test Kit
- Sample Volume: The sample must fill the grooved portion of the sample probe.
- Preparation: The patient should dip the sampling bottle transfer wand into the stool for collection and place it back into the sampling bottle. Specimens must be collected in a sample vial within 4 hours of defecation.
To obtain an iFOB test kit and detailed collection instructions, contact UF Health Pathology Laboratories’ Client Services Department at 888.375.LABS (5227).
- Ambient: 15 days
- Refrigerated: 30 days
- Frozen: Unacceptable
- Unpreserved stool
Within 24 hours
Monday - Friday
- Positive Results: Further testing is recommended if clinically indicated. This test has 97 percent specificity for detection of lower gastrointestinal bleeding in colorectal cancer.
- Negative Results: This test will not detect upper gastrointestinal bleeding. Additional testing should be ordered if clinically indicated.