31. Last year she began performing the exams herself, and two medical assistants took over management of the sigmoidoscopy room. 32. Currently, colon cancer is evaluated through sigmoidoscopies and colonoscopies _ devices that physicans use to visually examine the colon. 33. Given that many people already shun sigmoidoscopy , there may not be great enthusiasm for an even more invasive test. 34. Altogether, between 20 percent to 32 percent of men with advanced growths would thus be overlooked by sigmoidoscopy alone. 35. To pick up polyps missed by the occult blood test, experts recommend a procedure called flexible sigmoidoscopy every five years. 36. The same goes for other questions now being investigated : does examining the colon with sigmoidoscopy screening prevent colon cancer deaths? 37. Current options include checking for blood in the stool as well as more invasive procedures known as colonoscopy and flexible sigmoidoscopy . 38. The four main screening tests are fecal occult blood testing, flexible sigmoidoscopy , colonoscopy, and stool DNA screening test. 39. 1964-Microenema containing sodium citrate, sodium laurylsulphoacetate and sorbitol has been tested in preparation of the bowel for sigmoidoscopy . 40. Colonoscopy is preferred over sigmoidoscopy for this, as it provides better observation of the common right-side location of polyps.
