A long colonoscopy is an examination that allows for the visualization of the entire interior of the large intestine.
A long colonoscopy typically lasts between 15 and 30 minutes.
During this examination, the doctor inserts a thin, flexible tube, about the size of a finger, into your rectum. This tube, called a ‘colonoscope,’ is equipped with a tiny camera at its tip. The camera allows for the visualization of the interior of the large intestine and transmits the images to a screen.
Since the inside of the intestine is easier to view when it is inflated, the doctor introduces air into it using a device. This inflation can be uncomfortable or painful. That’s why the doctor may offer you a medication (analgesic) to reduce discomfort or pain. The doctor may also provide you with a relaxing medication (sedative) to help you relax during the examination.
In addition to examining the inside of the large intestine, the doctor may sometimes perform other procedures during the examination:
The day before your long colonoscopy, you will need to follow a special diet and take a laxative to clear your intestine of all stool. Your intestine must be completely empty for the doctor to examine its interior. If the doctor cannot see the inside of your intestine clearly, you may need to reschedule, repeat the preparation, and undergo the examination again. Therefore, it is crucial that you follow the recommended diet and take the prescribed laxative.
Arrange in advance for someone to accompany you. You should not operate a vehicle for the 24 hours following the examination. This period allows for the complete elimination of the sedative from your system. For the same reason, it is advisable to wait a few days before making important decisions.
Although it happens rarely, complications can occur before, during, or after the examination.
