Endoscopy & Colonoscopy

Endoscopy is a procedure in which the gastro-intestinal tract (GI tract) is viewed through a lighted, flexible tube with a camera at the end (endoscope). Small samples of tissues cells (biopsy) can also be collected and sent for testing.

There are two basic types of endoscopy:
  • 1. Upper endoscopy – The esophagus, stomach, and small intestines can be viewed by a thin flexible tube inserted through the mouth.
  • 2. Colonoscopy – The lining of the large intestine, colon and rectum can be viewed by a flexible tube inserted through the rectum.
Endoscopy is a nonsurgical procedure used to examine a person's digestive tract. Using an endoscope, a flexible tube with a light and camera attached to it, your doctor can view pictures of your digestive tract on a color TV monitor.
The doctor will explain to the patient the procedure, including the possibility of biopsy and risks such as the need to remove polyps or other surgical procedures.
  • Blood tests are sometimes required.
  • Medications can be given by vein if needed.
  • Please arrange for a ride home. You may feel drowsy after the procedure due to medications.
  • Upper endoscopy: No food or drink is allowed for six hours before the procedure. An empty stomach allows for the best view and safest exam.
  • Colonoscopy: Drink only clear liquids for at least 24 hours before the procedure. A laxative or special cleansing solution will be ordered by the physician to clear the bowel of stool so that the rectum/intestines can be seen. (See below for specific instructions)
  • The doctor will explain the procedure and get your consent.
  • Tell your doctor about medications you are taking.
  • Discuss allergies to medications and other medical conditions.
  • This is the time to ask questions about procedure.