Acceptable screening methods for colorectal cancer include the following: fecal occult blood testing annually, flexible sigmoidoscopy every 5 years, fecal occult blood testing annually with flexible sigmoidoscopy every 5 years, double-contrast barium enema every 5 years, double-contrast barium enema with flexible sigmoidoscopy every 5 years, or colonoscopy every 10 years. Virtual colonoscopy is another emerging technology for colorectal cancer screening; however, further study and larger sample populations of patients at average risk for colorectal cancer are necessary before this method can be widely used.1
- Colonoscopy every 10 years.
1. Pignone M, Levin B. Recent developments in colorectal cancer screening and prevention. Am Fam Physician 2002;66:297-302.
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