Flexible Sigmoidoscopy
The Basics
A sigmoidoscopy (Flex Sig) is a visual examination of the lower part of the large intestine (colon). A short, thin, flexible lighted scope is used to look inside the lower colon which consists of the rectum and the sigmoid colon. To be certain you are comfortable, you will have the option of receiving IV sedation during your procedure. Please discuss any sedation options with your doctor or our endoscopy staff.
How to Prepare
It is essential that you follow the instructions given to you by the doctor when preparing for the sigmoidoscopy to ensure thorough cleansing of the sigmoid colon and the rectum. Certain medications may need to be stopped prior to the procedure. Unless otherwise instructed continue taking any regularly-prescribed medication. You must bring a responsible adult (18 years or older) with you that can stay throughout the procedure process and that can drive you home.
What to Expect During Your Procedure
You will be asked to remove all clothing, except socks. You will be given a patient gown to wear.
The doctor will talk with you prior to the start of the procedure.
When it is time to start, you will be taken into the procedure room and asked to turn onto your left side. Sedation is given through the IV by a Certified Registered Nurse Anesthetist (CRNA). Once the sedation takes effect, the scope is introduced into the rectum and moved gently throughout the bends to the end of your sigmoid colon. The physician can visualize the lining of the intestine on the video monitor as the scope makes its way to the end of the sigmoid colon. If the doctor needs to take any biopsies a small instrument is placed down through the scope and tissue samples are taken to be sent to the laboratory for analysis. The entire procedure typically takes 15 to 20 minutes. When the procedure is finished you will be transported to the recovery area.
After the Procedure
A nurse will monitor you for a minimum of 30 minutes as anesthesia wears off. You may have some cramping and bloating after the procedure because of the air introduced into the colon during the examination. This should dissipate quickly with the passage of gas. Your responsible adult will be at the bedside when the doctor speaks with you about the findings of the procedure. Discharge instructions will be reviewed and questions answered.
You may feel normal as you leave the office, but sedation has lingering and often subtle effects. Please do not drive or do any activity requiring alertness.