Hemoccult ICT 2-Day Patient Screening Kit Colorectal Cancer Screening Fecal Occult Blood Test (iFOB or FIT) - 50 TestsHemoccult ICT 2 Day Patient Screening Kit Colorectal Cancer Screening Fecal Occult Blood Test (iFOB or FIT). The hemoccult test is a home test that's used to detect the presence of occult blood in your stool. Occult blood is blood in your stool that you can't see in the toilet or on the toilet paper after you have a bowel movement. The hemoccult test is predominantly used as a diagnostic tool for colorectal cancer. The Hemoccultfi ICT (Immunochemical