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Reasons for Procedure
- Puncture of the bowel
- Pre-existing heart or kidney condition
- Treatment with certain medications, including aspirin and other drugs with blood-thinning properties
- Prior abdominal surgery
- Active colitis , diverticulitis , or other acute bowel disease
- Previous treatment with radiation therapy
What to Expect
Prior to Procedure
- Perform a physical exam
- Review your health history
- Review any medication you are taking
- Test your stool for blood
- Wear comfortable clothing.
- Arrange for a ride home after the procedure.
- Enemas—fluid introduced into the rectum to stimulate a bowel movement
- Laxatives—medications that cause you to have soft bowel movements
- Oral cathartic medications—a large container of fluid to drink that stimulates a bowel movement
- Do not eat any solid foods. This includes milk or cream in your coffee.
- Drink only clear liquids such as water, coffee without cream, ginger ale, apple juice, and sports drinks (do not drink red sports drinks)
- You can also have gelatin or popsicles as long as they are not red
- Do not drink alcohol
- If you have diabetes, ask your doctor if you need to adjust your insulin dose
Description of the Procedure
How Long Will It Take?
Will It Hurt?
- It will be sent to a lab to be examined. It may take 1-2 weeks for results. The doctor can usually give an initial report after the scope is removed. Other tests may be advised.
- A small amount of bleeding may occur during the first few days after the procedure.
Call Your Doctor
- Bleeding from your rectum—Notify your doctor if you pass a teaspoonful of blood or more.
- Black, tarry stools
- Severe abdominal pain
- Hard, swollen abdomen
- Signs of infection, including fever or chills
- Inability to pass gas or stool
- Coughing, shortness of breath, chest pain, severe nausea or vomiting
American Society for Gastrointestinal Endoscopy http://www.asge.org
National Institute of Diabetes and Digestive and Kidney Diseases http://www.niddk.nih.gov
Canadian Association of Radiologists http://www.car.ca
Public Health Agency of Canada http://www.phac-aspc.gc.ca
Colonoscopy. National Institute of Diabetes and Digestive and Kidney Diseases website. Available at: http://www.niddk.nih.gov/health-information/health-topics/diagnostic-tests/colonoscopy/Pages/diagnostic-test.aspx. Updated September 11, 2013. Accessed September 15, 2014.
Frequently asked questions about colonoscopy and Sigmoidoscopy. American Cancer Society website. Available at: http://www.cancer.org/Healthy/FindCancerEarly/ExamandTestDescriptions/faq-colonoscopy-and-sigmoidoscopy. Accessed September 15, 2014.
6/2/2011 DynaMed's Systematic Literature Surveillance. http://www.ebscohost.com/dynamed: Mills E, Eyawo O, Lockhart I, et al. Smoking cessation reduces postoperative complications: a systematic review and meta-analysis. Am J Med. 2011;124(2):144-154.
- Reviewer: Daus Mahnke, MD
- Review Date: 08/2015 -
- Update Date: 09/15/2014 -