Abstract
Fecal occult blood (FOB) is an inexpensive, easily applicable, reliable and efficient test that is used to detect colon pathologies. FOB is applied as a screening program in family medicine practice that is a part of preventive health services in many countries. The main objective of the scanning program is to perform a FOB test at every two years for everyone between the ages 50-70 in the standards set in Turkey. The patients that are tested positive as a result of this screening which is also actively applied in Turkey are directed to secondary care for further examination by the primary care physicians. Scanning is performed by using the test kits that are based on chromatography and developed by means of immunochemical method. In this article, the importance of FOB in preventive health services and the concept of chromatography will be discussed.
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