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A gastric emptying scan, also known as a gastric emptying study or test, is an exam that uses nuclear medicine to determine how fast food leaves the stomach.
An abdominal ultrasound uses sound waves to check a number of conditions. Learn about what ultrasounds are used for and if there are any risks.
An esophagogastroduodenoscopy (EGD) test is performed to examine the lining of your esophagus. The esophagus is the muscular tube that connects your throat to your stomach and the duodenum - the upper part of the small intestine. An EGD test is ad...