What kind of procedures might follow a positive FOBT?
An FOBT may be preceded or followed by a digital rectal exam. A positive FOBT may be followed by: • Sigmoidoscopy: an examination of the rectum and lower colon with a lighted instrument to look for abnormalities, such as polyps; • Colonoscopy: a more thorough examination of the rectum and entire colon; and • Double contrast barium enema: a series of x-rays of the colon and rectum.
