text: Endoscopic evaluation of patients with constipation include flexible sigmoidoscopy and colonoscopy. Flexible sigmoidoscopy is the direct visualization of the rectum and sigmoid colon. However, colonoscopy is study of the whole colon lumen. Every patient with alarm signs have to be evaluated using colonoscopy. In younger patients, flexible sigmoidoscopy would be sufficient for further investigation of alarm signs. Colonic manometry is 24-hour measurement of pressure within the large bowel, using specific probes and portable recorders. Anorectal manometry is studying the pressure activity of anorectum during rest and defecation, along with rectal sensation, rectoanal reflexes, and anal sphincter function. Balloon expulsion test is a simple bedside test to evaluate the ability of patient to evacuate the artificial stool. Rectal biostat test consists of a very compliant plastic balloon, which is inserted into the rectum, concurrently connected to computer device to measure the pressure.
option_0: Constipation other diagnostic studies
option_1: Increased bowel sounds other diagnostic studies
option_2: Ileus other diagnostic studies
option_3: Constipation other imaging findings
option_4: Chronic diarrhea other diagnostic studies
option_5: Chronic diarrhea differential diagnosis
option_6: Acute diarrhea other diagnostic studies
option_7: Bowel obstruction other diagnostic studies