What is an upper gastrointestinal series (Upper GI Series)?
An upper gastrointestinal series (Upper GI Series) is a painless X-ray study of the upper and middle sections of the gastrointestinal tract, sometimes followed by X-rays of the small bowel, called a small bowel series. The patient is given gas producing crystals, followed by a mixture of barium and water to drink. While the patient lies on a table, the radiologist monitors the movement of the barium through the esophagus, stomach, and small intestine using fluoroscopy. The patient is asked to move into different positions to help distribute the barium. Several X-rays are taken at different times and from different directions by a state licensed, ARRT (American Registry of Radiological Technologists) certified technologist. An upper gastrointestinal series is used to help diagnose diseases and other problems that affect the gastrointestinal tract.
