Pinnacle BioLabs Second Generation FIT Colorectal Cancer Test is THE test used by physicians. The American College of Gastroenterologists recommend a FIT test annually to everyone over 50, and beginning at 45 for African Americans and American Indians. The FIT test is 98% sensitive, 96% specific -with Lab accurate results (for occult, or hidden, blood in the lower GI tract). There is ONE test in this box.