A nurse enters an older adult client's room to insert a saline lock. The client asks the nurse, "Why do I need that? I am drinking plenty of fluids." Which of the following responses should the nurse provide?

A. "Your provider has prescribed antibiotic therapy to be administered intravenously every 6 hours.": This response directly explains the medical reason for the saline lock, linking it to the client’s prescribed therapy. It provides clarity and reinforces that the intervention is necessary for safe and effective treatment. B. "Clients over the age of 65 must have a saline lock according to facility policy.": Age alone is not a valid reason for IV access. Using such an explanation could reduce trust between the nurse and the client. C. "It is quicker to administer medications intravenously in the hospital.": While IV administration can be faster, this response is vague and does not address why this particular client specifically requires a saline lock. It lacks individualized rationale. D. "We administer all medications intravenously to clients in this unit.": Not all medications are given intravenously. Providing this explanation would confuse the client and reflect poor communication of actual care needs.