How to Prepare for a FIT Test and What to Expect from the Test. You don’t need to do anything special to prepare for a FIT test. You don’t need to change your diet or medicines or do bowel prep (steps ...

A widely used fecal immunochemical test (FIT) significantly outperformed a novel blood-based cell-free DNA (cfDNA) test in detecting advanced precancerous colorectal lesions (APCL) in colorectal ...