First and perhaps most important is proper bowel preparation
The ability to see precancerous polyps and colon tumors depends on the presence of residual stool in the colon. This depends on completing the prescription intestinal preparation and drinking large amounts of fluid during preparation. For all preparations, you should fast from solids throughout the day and drink only clear liquids before the test. Stop eating solids 2 days before testing if you have previously been poorly prepared, tend to have constipation, are taking medication, or have a condition that slows your bowel movements. May be asked.
You will be asked to take one of several bowel preparations as directed by your provider. Split doses (usually on the very early eve of the test day, splitting the preparatory drug into two separate time doses) have been shown to achieve the highest success rates in proper removal of the colon. No matter which prep you use, it won’t be overemphasized. All of them work best when you drink lots of clear liquids.
Despite being given very detailed bowel preparation instructions, some people do not follow these instructions, especially if they drink a lot of water. You may not drink enough fluid during preparation, you may not be able to avoid the previous day’s meal, or you may start too late to get rid of all your stools and fluids. Patients with inadequate bowel preparation should be rescheduled for retesting. You don’t want to do half-hearted bowel preparation only if you need to cancel or if your colonoscopy is incomplete or inadequate and needs to be retested.
Preliminary examinations by non-gastroenterologists increase the risk of missing lesions
Studies have confirmed that if a doctor other than a gastroenterologist performs a colonoscopy, the risk of missing polyps and colon cancer is much higher. If colonoscopy is performed by a non-gastroenterologist, the risk of missing a polyp has been reported to be as high as 50%. If possible, you should insist that a gastroenterologist perform a colonoscopy or a colorectal surgeon perform many tests regularly during the year. Most gastroenterologists perform more than 1000 colonoscopy annually.
Incomplete examination during initial colonoscopy risks missing lesions
The inability to reach the end of the colon is known as the risk of missing colon polyps and colon cancer. Inexperienced endoscopists and non-gastroenterologists may not be able to reach the cecum, but they are unaware. Photographic documents of the anatomical landmarks of the cecum are increasingly being used by endoscopists to document the area where the examination has been completed. If your report does not reveal that the exam is complete, you should.