Barium Meal

n. solution that contains barium which is taken by mouth before X-ray examination of the stomach, esophagus and upper intestine

A barium meal, also known as an upper gastrointestinal series is a procedure in which radiographs of the esophagus, stomach and duodenum are taken after barium sulfate is ingested by a patient. Barium meals are useful in the diagnosis of structural and motility abnormalities of the foregut. The gastrointestinal tract, like other soft-tissue structures, does not show clearly enough for diagnostic purposes on plain radiographs. Barium salts are radioopaque: they show clearly on a radiograph. If barium is swallowed before radiographs are taken, the barium within the esophagus, stomach or duodenum shows the shape of the lumina of these organs.
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Barium /bar·ium/ a chemical element, at. no. 56. Its acid-soluble salts are poisonous; causing gastrointestinal symptoms followed by severe, [more]Barium meal - Community and Resources

barium meal
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