What is a colonoscopy?
A colonoscopy is an examination of the colon and the rectum by means of a so-called endoscope. For this test one uses a special endoscope, the so-called colonoscope, which has a movable hose with glass fiber optics, which enables the doctor to see inside. Although older devices were set up with an optical device which let the doctor look directly into it, today the standard is video optics, with transmission onto a monitor. It is then possible for the patient to follow the examination. The endoscope is usually fitted with a working device which can take tissue samples. Before the test, the large intestine has to be emptied, so that the test will not be impaired by stool remains. To do this, the day before the test or right before the test a strong laxative is given, usually in a liquid form. A colonoscopy can be done by a doctor either in a practice or in a clinic. One can request a light sedative for this test which will be injected, in order to make the test more pleasant. By now, th
A colonoscopy is an exam of the entire colon (also called the large intestine or lower bowel). Sometimes only the lower part of the colon and rectum need to be checked. Then the exam is called a sigmoidoscopy. In both exams, a flexible tube is put into the rectum. A bright light inside the tube makes it possible for the doctor to look at the lining of your colon. Since the tube is hollow, the doctor is able to put instruments through it if needed. A colonoscopy is done: *To find the cause of bleeding or irritation in the bowel *To obtain specimens *To remove growths Your doctor will explain why you need a colonoscopy as well as possible risks and complications of the exam. You will also be given the opportunity to view a video of a colonoscopy as part of your patient instructions prior to the procedure. You will also be given instruction sheets with information as to how to prepare for the exam.
A colonoscopy is a screening test for colon cancer. It is recommended that people of average risk get a colonoscopy or other type of screening every 10 years starting at age 50. People at high risk should begin screening earlier, and sometimes more often.
A colonoscopy is an examination of the colon and the rectum by means of a so-called endoscope. For this test one uses a special endoscope, the so-called colonoscope, which has a movable hose with glass fiber optics, which enables the doctor to see inside. Although older devices were set up with an optical device which let the doctor look directly into it, today the standard is video optics, with transmission onto a monitor. It is then possible for the patient to follow the examination. The endoscope is usually fitted with a working device which can take tissue samples. Before the test, the large intestine has to be emptied, so that the test will not be impaired by stool remains. To do this, the day before the test or right before the test a strong laxative is given, usually in a liquid form. A colonoscopy can be done by a doctor either in a practice or in a clinic. One can request a light sedative for this test which will be injected, in order to make the test more pleasant.
