158) ANSWER

D) Use a bulk-forming agent, such as Metamucil.

RATIONALE

Metamucil is a bulk-forming laxative that could aggravate diarrhea. Kaopectate (option 2) is an antidiarrheal agent that is commonly used to manage this health problem, which is usually self-limiting. The client should contact the health care provider again if diarrhea persists (option 3), because diarrhea lasting more than two days requires attention. Dairy products are a food source that can aggravate diarrhea (option 1). Note that the question stem asks for selection of the option that would establish that the client needs further teaching. Note that the words "bulk-forming" are present in option 4. This would lead you to suspect that diarrhea would be aggravated, with more stool produced, if a "bulk-forming" agent were consumed. The other answers all indicate that the client understands management of the illness.