Likewise, any abnormal-looking tissue may be removed for biopsy to determine whether it is benign, cancerous, or a result of inflammation. The test, while not painful, may be uncomfortable, so you'll get an intravenous drug to relax you. A colonoscopy is usually done if a signoidoscopy has detected polyps or the person is at higher risk. For this test, barium sulfate, a chalky material that partially fills and opens up the colon, is given in the anus. You lay on an X-ray table, and you'll be turned to allow the barium to spread throughout the colon.
Air is inserted to expand the colon before X-rays are taken.
This test can detect a constriction in the colon. You can also visit their Web site . Shop O2 . All Rights Reserved.