What does a colonoscope look like and how does it work?
The colonoscope is a flexible fiberoptic camera connected to a video processor and light source. The light source illuminates the end of the scope allowing the gastroenterologist to visualize the inside to the lower GI tract (from rectum through entire large intestine, also called large bowel or colon). The video processor allows the picture to be displayed on a monitor screen. The physician will insert air through the scope to expand tissue to assist with visualization. It is very important that you drink your colon prep as directed until what you expel is completely clear. Clear means it is clear like yellow water but may have “flecks.” Also, stool must remain clear. All fecal material must be flushed out of your system. This allows your physician to have a clear view of your colon. Being able to see the colon clearly allows for the best possible examination in the least amount of time and therefore with less sedation.
