According to the American Cancer Society, colorectal cancer is the third most common cancer diagnosed in both men and women in the United States. The American Cancer Society's estimates for the number of colorectal cancer cases in the United States for 2015 are:

- 93,090 new cases of colon cancer

- 39,610 new cases of rectal cancer

The American Cancer Society and Centers for Disease Control recommend a fecal occult blood feces test annually after age 50 to aid in the early detection of colorectal cancer. The Accutest® Fecal Occult Blood (FOB) Screen Card Test is a qualitative, sandwich colloidal gold conjugate immunoassay for the determination of human hemoglobin in feces. The method employs a unique combination of monoclonal and polyclonal antibodies to selectively identify hemoglobin in test sample with a high degree of sensitivity. In less than 5 minutes, elevated levels of human hemoglobin as low as 50 ng/ml can be detected and positive results for high levels of hemoglobin can be seen in the test as early as two to three minutes.

Additional resources:

http://www.cancer.org/cancer/colonandrectumcancer/detailedguide/colorectal-cancer-what-is-colorectal-cancer

http://www.who.int/cancer/detection/colorectalcancer/en/

http://www.cdc.gov/cancer/colorectal/basic_info/screening/tests.htm