Final answer:
Barium sulfate is an acceptable contrast medium for use with infants with swallowing disorders and adults with suspected bronchoesophageal fistulas. It coats the intestinal tract and allows for greater visual detail in medical imaging. Barium sulfate is commonly used to diagnose conditions such as acid reflux disease, Crohn's disease, ulcers, and bronchoesophageal fistulas.
Step-by-step explanation:
The type of contrast medium acceptable for use with infants who have swallowing disorders or adults who have suspected bronchoesophageal fistulas is barium sulfate. Barium sulfate is commonly used in medical imaging to coat the intestinal tract and provide greater visual detail than a traditional X-ray. It is opaque to x-rays due to its high atomic mass of barium. This makes it an ideal contrast medium for diagnosing conditions such as acid reflux disease, Crohn's disease, ulcers, and bronchoesophageal fistulas.