Waht Causes A False Positive Fecal Occult Blood Test

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A fecal occult blood test (FOBT) is a noninvasive test (nothing enters the body). This test detects hidden (occult) blood in the stool. Such blood may come from anywhere along the digestive tract. Hidden blood in stool is often the first, and in many cases the only, warning sign that a person has colorectal disease, including colon cancer.

Alternative Names

Stool occult blood test

How the test is performed

There are two types of FOBTs: 1) the...

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