An upper endoscopy is used to examine the upper gastrointestinal tract including the esophagus, stomach and upper duodenum. During the endoscopy, the doctor will use a thin, flexible tube called an endoscope. This tube has a viewing instrument which sends images to a monitor. A tissue sample can be taken with the endoscope. It can also be used to treat bleeding.
In preparation for the procedure you should have nothing to eat or drink for at least 6 hours prior to the procedure. Your doctor will give you specific instructions about when to start fasting and if any of your prescription medication should be taken.
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