NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,051 terms related to cancer and medicine.
- immunoassay fecal occult blood test
- listen (IH-myoo-noh-A-say FEE-kul uh-KULT ...)
A test that checks for occult (hidden) blood in the stool. A small sample of stool is placed in a special collection tube or on a special card and sent to a doctor or laboratory for testing. An antibody that binds to a blood protein called hemoglobin is used to detect any blood. Blood in the stool may be a sign of colorectal cancer or other problems, such as polyps, ulcers, or hemorrhoids. Also called fecal immunochemical test, FIT, iFOBT, immunochemical fecal occult blood test, and immunologic fecal occult blood test.