an x-ray which involves swallowing a tasteless, white liquid
a preparation containing barium sulfate that is used in conjunction with X-rays in the medical diagnosis of the digestive system
a procedure in which barium sulfate is ingested by a patient and, in conjunction
a type of X-ray investigation
a liquid suspension of barium sulphate which, when drunk, enables X-ray pictures to be taken of the gullet and stomach. It can be followed through into the small intestine with further pictures.
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.