Fecal immunochemical testing, or FIT, is more than 90 percent accurate in screening and detecting colorectal cancer, reports HealthDay. FIT is the test of choice for colon screening because it provides consistently high quality and accurate results, states PubMed Central.
Individuals perform FIT at home in order to screen for colon diseases such as colon cancer. The test works by looking for hidden blood in the stool, explains WebMD. The test uses specific and sensitive hemoglobin analysis to detect the bleeding. This reduces the number of false-positives and ensures that results are accurate, states PubMed Central. Doctors prefer this method because it is better at picking up colon diseases, and it is easy to use. The patient has to take a stool sample and mail it to the lab in order to get results.