Many diseases can cause hidden blood in the feces. This is also known as fecal occult blood (FOB), human occult blood, or human hemoglobin. In early stages, gastrointestinal problems such as colon cancer, ulcers, polyps, colitis, diverticulitis, and fissures may not show any visible symptoms, only occult blood. Traditional guaiac-based methods lack sensitivity and specificity and also require diet restrictions prior to testing.^1,2

The Clearview™ One Step Fecal Occult Blood Test Device (Feces) is a rapid test to qualitatively detect low levels of FOB. The test uses a double antibody sandwich assay to selectively detect FOB at 50 ng/ml or higher, or 6 µg/g feces, and unlike guaiac assays, the accuracy of the test is not affected by the diet of the patient.