The patient is instructed to drink which of the following solutions before undergoing radiological examinations?

Answer: [A] Barium sulphate

The patient is made to drink Barium sulphate suspension before he/she undergoes examination of the upper gastrointestinal (GI) tract, specifically the pharynx, the esophagus, stomach, and duodenum. Barium is a highly reactive element and hence is not found in nature as a free element.

This question is a part of GKToday's Integrated IAS General Studies Module