A nurse is reinforcing teaching a client who is scheduled for a barium swallow to evaluate dysphagia. Which of the following statements should indicate to the nurse that the client understands the instructions?

A. "I will expect my stool to be black after this procedure.": Black stools indicate possible GI bleeding, not a normal post–barium finding. B. "I will drink plenty of fluids after the test.": Barium can cause constipation and possible impaction; increased fluids help flush the barium from the GI tract. C. "I will maintain a clear liquid diet 24 hours before the test.": This is required for barium enema, not barium swallow; for swallow tests, NPO after midnight is typical. D. "I will expect a warm feeling when the dye is injected.": No dye is injected during a barium swallow; the client drinks barium contrast instead.