Entry from US English dictionary
An odorless, insoluble white powder used in the making of pigments, paper, textiles, and plastics, and ingested as a contrasting agent in X-raying the digestive tract.
- Chemical formula: BaSO4
- Barium salts are opaque to x rays, and so a slurry of barium sulfate is ingested in order to outline the stomach and intestines in x - ray diagnosis of those organs.
- The reflected light from the animal re-enters the ultra pure white barium sulfate coated sphere.
- Barium enema with air contrast examination: For this exam, barium sulfate, a chalky substance that shows up on x-rays, is given in enema form.
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