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how is a barium swallow test done?
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a barium swallow test, also known as an esophagram, is a diagnostic test used to examine the lining of the esophagus, stomach and part of the small intestine by taking x-ray images. before the test, the patient drinks a chalky liquid containing barium which coats the inside of their digestive tract. the radiologist then takes x-ray images of the patient as the barium passes through their digestive tract.
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