The Hemoccult II SENSA test is a rapid, convenient and qualitative method for detecting fecal occult blood which may be indicative of gastrointestinal disease. It is not a test for colorectal cancer or any other specific disease. Hemoccult II SENSA is the enhanced Hemoccult product that provides improved readability and higher clinical sensitivity over regular Hemoccult and other FOBTs. Hemoccult II SENSA has been proven to give the highest clinical sensitivity readings (92%) 1,2 and offers the ability to find more true positives of occult blood. Since polyps and cancer may bleed intermittently, Hemoccult II SENSA triple slide products are designed so patients can collect serial specimens over 3 days, increasing the probability of detecting hidden blood from polyps and cancer.