The Rapid ResponseTM Fecal Immunochemical Test (FIT) is an immunochromatographic assay intended for the determination of human hemoglobin in feces by professional laboratories or physician’s offices. It is useful to determine gastrointestinal bleeding found in a number of gastrointestinal disorders such as colorectal carcinoma, colon polyps, diverticulitis and ulcerative colitis.
The FIT test is recommended for use in
1) routine physical examination
2) hospital monitoring for bleeding in patients
3) screening for colorectal cancer or gastrointestinal bleeding from any source.