- Minimally invasive test to detect changes or abnormalities in the large intestine (colon) and rectum.
- Polyps or other types of abnormal tissue can be removed through the scope during a colonoscopy.
- Tissue samples (biopsies) can be taken during a colonoscopy.
- Causes of abdominal pain, rectal bleeding, chronic constipation, chronic diarrhoea and other intestinal problems can be detected.
- Ulcers, colon polyps, tumours, and areas of inflammation or bleeding can be detected.
- Nothing to take by mouth on the day of colonoscopy.
- Bowel clearance by laxativeseither the night before colonoscopy, or in the morning of the procedure.
- Avoid taking medicines for Diabetes or any blood thinner agents on the day of procedure.
- During a colonoscopy, patient is sedated to minimize discomfort.
- Patient lies in his side on the examination table, with knees drawn towards chest.
- Long, thin, flexible tube called a colonoscope, which contains a light by which air is pumped into colon, is inserted into the rectum to look at the colon.
- The colonoscope also contains a tiny video camera at its tip which sends images of inside of the colon to an external monitor.
- A colonoscopy usually takes about 20 minutes to an hour.
After the procedure
- After the procedure, it takes about an hour to begin to recover from the sedative.
- Someone may be needed to take the patient home because it can take up to a day for the full effects of the sedative to wear off.
- Patient canít drive or go back to work for the rest of the day.
- Patientmay feel bloated or pass gas for a few hours after the exam, due to passage of air from colon. Walking may help relieve any discomfort.
- Patient may also notice a small amount of blood(rare) with his first bowel movement after the exam.
- Consult doctor in case of persistent bleeding, abdominal pain or a fever.