Individual tests

The fecal occult blood test (FOBT) checks stool samples for hidden (occult) blood. Occult blood in the stool may indicate colon cancer or polyps in the colon or rectum — though not all cancers or polyps bleed. If blood is detected through a fecal occult blood test, additional tests such as a colonoscopy may help determine the source of the bleeding. The fecal occult blood test can only detect the presence or absence of blood — it can't determine what's causing the bleeding.
Fibrinogen is one of several proteins in the body referred to as clotting factors. These work together to form blood clots and stop bleeding when your body’s tissues or blood vessels are damaged. Fibrinogen testing helps evaluate and monitor symptoms like excessive bleeding or abnormal blockages in veins or arteries.
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