A nurse is caring for a client who is receiving total parenteral nutrition (TPN). Which of the following actions should the nurse take?

A. Change the tubing every 24 hr: TPN has a high glucose content, which increases the risk for bacterial growth within the tubing. Changing the tubing every 24 hours helps reduce the risk of bloodstream infection and maintains strict aseptic control. B. Increase the rate of TPN if given late: Increasing the infusion rate can cause fluid overload, electrolyte shifts, and rapid glucose changes. TPN must be infused at a constant prescribed rate; if delayed, the nurse should resume at the ordered rate rather than attempt to “catch up,” which could destabilize the client. C. Replace the transparent dressing on the central line catheter every day: Central line transparent dressings are changed every 5 to 7 days unless soiled, loose, or damp. Changing it daily increases manipulation of the site and elevates infection risk. D. Monitor serum electrolytes and glucose weekly: Clients receiving TPN require frequent monitoring because of ongoing risks such as hyperglycemia, electrolyte imbalance, and refeeding complications. Monitoring weekly is inadequate; daily or more frequent checks are necessary early in therapy to maintain metabolic stability.