upper GI series


: fluoroscopic and radiographic examination (as for the detection of gastroesophageal reflux, hiatal hernia, or ulcers) of the esophagus, stomach, and duodenum during and following oral ingestion of a solution of barium sulfate

called also upper gastrointestinal series

Dictionary Entries Near upper GI series

Cite this Entry

“Upper GI series.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/upper%20GI%20series. Accessed 18 Jul. 2024.

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