A nurse on the day shift is preparing to change a client's total parenteral nutrition (TPN) solution, but the new TPN solution has not arrived from the pharmacy. The client receives additional IV fat emulsion during the night shift. Which of the following actions should the nurse take?

Rationale: A. Simply saline locking the IV catheter would interrupt the continuous infusion of nutrients, which can lead to hypoglycemia in clients receiving TPN. B. Hanging only the IV fat emulsion is insufficient to meet the client’s total nutritional and caloric needs; it does not prevent hypoglycemia. C. Calling the provider for new TPN orders is unnecessary if the original prescription is still valid; the priority is maintaining glucose levels until the TPN arrives. D. If the TPN solution is unavailable, D₁₀W (10% dextrose in water) should be infused to prevent hypoglycemia, as TPN provides continuous glucose supply and abrupt discontinuation can cause dangerous drops in blood sugar.