Catharine M Walsh

"Endoscopy is a procedure whereby the body is examined internally using an endoscope. It is most commonly used for gastrointestinal, urinary and renal conditions. Endoscopy is usually carried out while a person is awake. Before the procedure, a sedative (medication that has a calming effect) may be given to help the patient relax. An endoscope is a thin, long, flexible tube that has a light source and a video camera at one end. Images of the inside...