![]() ![]() During this time, some air will be passed down the endoscope to distend the stomach and allow a clearer view. It may take up to fifteen minutes to examine all the areas of the oesophagus, stomach and duodenum carefully. When the endoscopist passes the endoscope into your stomach it will not cause you any pain, nor will it interfere with your breathing at any time. To keep your mouth slightly open, a plastic mouthpiece will be put gently between your teeth. The endoscopist may also give you an injection into your arm to make you feel sleepy and relaxed, but many hospitals now find that the test can be performed without any sedation as the endoscopes have become much smaller and easier to swallow. Some endoscopists may spray a local anaesthetic on the back of your throat. A nurse will stay with you throughout the test. In the examination room you will be made comfortable on a bed, resting on your left side. It will also be necessary for you to remove any false teeth, they will be kept safely until after the examination. You may be asked to take off your shirt or jumper and to put on a hospital gown. If you have any worries or questions at this stage don't be afraid to ask, the staff will want you to be as relaxed as possible for the test and will not mind answering your queries. They will also want to know about any previous endoscopy you have had. Please tell the doctor or nurse if you have had any allergies or bad reactions to drugs or other tests. This is to ensure that you understand the test and its implications. When you come to the department, a doctor or nurse will explain the test to you and will usually ask you to sign a consent form. You will therefore be asked not to have anything to eat or drink for at least six hours before the test. To allow a clear view, the stomach must be empty. Sometimes the endoscopist takes a biopsy - a sample of tissue for analysis under the microscope in the laboratory, the tissue is removed painlessly through the endoscope using tiny forceps. The endoscopist gets a clear view of the lining of the stomach and can check whether or not any disease is present. ![]() The endoscope is a thin flexible tube (no larger than a finger) with a bright light and video camera at the end. In order to do the test, an endoscope is passed through your mouth into the stomach. ![]() Upper GI endoscopy, also called OGD (oesophago-gastro-duodenoscopy), 'gastroscopy' or simply an 'endoscopy', is a test which allows the doctor to look directly at the lining of the oesophagus (the gullet), the stomach and around the first bend of the small intestine - the duodenum. Upper Gastrointestinal Endoscopy What is an Upper GI Endoscopy (OGD)? ![]()
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