2022 · Q61
A patient’s abdomen (alimentary canal) can be examined by X-ray after administering which one of the following metal salts in the patient’s meal ?
General KnowledgePhysics
- ABarium sulphate
- BBarium chloride
- CStrontium sulphate
- DMagnesium chloride
Explanation
Barium sulphate is administered as a 'barium meal' because it is insoluble (hence non-toxic) and radio-opaque, making the alimentary canal visible on X-ray. Barium chloride is soluble and toxic, while strontium sulphate and magnesium chloride serve no such purpose. Hence barium sulphate is used.