YARON NIV, M.D.
To the editor: The Hemoccult test (Smith Kline Diagnostics, Inc., Sunnyvale, California) for fecal occult blood is now used worldwide as a screening test for early detection of colorectal cancer and colonic polyps (1). The Hemoccult II card has six small windows. During 3 days, all six windows are smeared. The test is considered positive if at least one window turns blue after application of the developing fluid. In the current study, I examined whether the number of positive Hemoccult windows was correlated with colonoscopic results.
A screening program for early detection and secondary prevention of colorectal cancer was started
NIV Y. Positive Hemoccult Tests and Colonoscopic Results. Ann Intern Med. ;105:470. doi: 10.7326/0003-4819-105-3-470_2
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Published: Ann Intern Med. 1986;105(3):470.
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