Test Overview
Test Methodology

Hemoccult Sensa- oxidation

Test Usage

Performed at authorized locations by point of care operators. Used to monitor gastrointestinal bleeding in patients with iron deficiency anemia or recuperating from surgery, peptic ulcer, ulcerative colitis and other conditions. It is not a test for colorectal cancer or other specific diseases.

Reference Range *


* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

•Bowel lesions, including some polyps and colorectal cancers, may not bleed at all or may bleed intermittently. Also, blood, if present may not be distributed uniformly in the fecal specimen. Consequently, a test result may be negative when disease is present.
•Substances that can cause false-positives results: Red meat, Aspirin (> 325 mg/day), non-steroidal anti-inflammatory drugs (e.g., ibuprofen, indomethacin, and naproxen), Corticosteroids, phenylbutazone, reserpine, anticoagulants, antimetabolites, and caner chemotherapy drugs, excess alcohol consumption, and application of antiseptic preparations containing iodine.
•Substances that can cause false-negative results: Ascorbic acid (>250 mg/day), excess consumption of vitamin C rich foods, iron supplements contain high concentration of vitamin C.
•Occult blood test results from the Hemoccult SENSA test cannot be considered conclusive evidence of the presence or absence of gastrointestinal bleeding or pathology. Hemoccult SENSA tests are designed for preliminary screening as an aid to diagnosis. They are not intended to replace other diagnostic procedures such as sigmoidoscopy, colonoscopy, barium enema, or other x-ray studies.

Test Details
Analytic Time

1 minute

Soft Order Code
MiChart Code
Occult Blood Stool, Point of Care
Point of Care
Point of Care
Specimen Requirements
Collection Instructions

1. Identification- follow positive patient identification procedure. Apply patient demographic label or write at least two unique patient identifiers on the front of the slide in space provided.
2.Using applicator provided, collect small fecal sample.
3. Apply thin smear covering Box A.
4. Reuse applicator to obtain second sample from a different part of the specimen.
5. Close cover flap. Dispose of applicator in waste container.

Additional Information

For more test specific information, please refer to the test procedure found on the Michigan Medicine POC website: https://www.pathology.med.umich.edu/point-of-care.

CPT Code