A fecal immunochemical test (FIT) checks for occult (hidden) blood in the stool. A small sample of stool is placed in a special collection tube or on special cards and returned to a doctor or laboratory for testing. Must have a detailed colorectal operative experience record and recommendations from Fortbildung http://remingtonawodv.blogacep.com/10061914/eine-Überprüfung-der-certified-colon-and-rectal-surgeon