What happens if the colon is perforated?
The colonoscopy usually takes about 15 to 20 minutes to complete (longer if multiple biopsies or removal of polyps is needed). During this time you will be sedated and may be asleep, but not under general anaesthetic (only used on rare occasions). You may be given additional sedation or pain killers (within safety limits) if you experience discomfort. A nurse will stay with you throughout the procedure. Your blood pressure, pulse rate, breathing and oxygen saturation will be monitored continuously during the procedure and intermittently afterwards until you wake up fully. The surgeon/endoscopist maneuver the colonoscope and examine the colon to the caecum and again while withdrawing the instrument.
