An upper gastrointestinal (UGI) series is a multi-step test a doctor uses to examine the upper portion of a person's gastrointestinal tract.
The person being tested swallows a chalky-tasting "milk shake" of barium and water (barium contrast material) followed by gas-producing crystals. The doctor then tracks the progress of the barium through the throat (esophagus), stomach, and the first part of the small intestine (duodenum) using a device called a fluoroscope that takes pictures. The fluoroscope is connected to a TV monitor. Several X-ray pictures are usually taken at different times and from different angles.
An upper GI series may be done to:
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Adam Husney, MD - Family Medicine
Specialist Medical ReviewerJerome B. Simon, MD, FRCPC, FACP - Gastroenterology
Current as ofNovember 20, 2015
WebMD Medical Reference from Healthwise