Upper endoscopy or EGD is a test in which a small tube with light at the end is used to examine the lining of the upper gastrointestinal tract (the esophagus, stomach and duodenum). Immediately prior to this test, you will be given medications to help lessen any discomfort you may be bound to feel at the time of the procedure. This test is offered in our AAAHC endoscopy center.