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A gastric emptying scan, or gastric emptying study or test, is an exam that uses nuclear medicine to determine how quickly 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 EGD test (esophagogastroduodenoscopy) examines the lining of your esophagus, stomach, and duodenum.