Abstract
Fecal immunochemical testing (FIT) is now the preferred method of detecting fecal occult blood and has begun to replace older, guaiac-based fecal occult blood testing (FOBT; JW Gastroenterol Apr 4 2008). One drawback of FOBT is its low specificity for colorectal cancer (CRC), which might result from gastrointestinal bleeding caused by medications such as anticoagulants or nonsteroidal …
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