A nurse is assisting with preparing a client who is to have a central venous catheter inserted for the administration of total parenteral nutrition (TPN). Which of the following actions should the nurse take?

A. Verifying the amount of TPN solution the client is receiving every 4 hours is incorrect. While monitoring the TPN infusion rate is important, the rate and amount are typically verified at the start of the infusion and with each new bag change, not every 4 hours. B. Placing the client in Sims' position for catheter insertion is incorrect. The preferred position for central venous catheter insertion is Trendelenburg or supine with a slight head turn, which helps dilate the veins and reduce the risk of air embolism. C. Using clean technique when changing the catheter dressing is incorrect. Central venous catheter care requires sterile technique to prevent infections, including catheter-related bloodstream infections (CRBSIs). D. Preparing the client for a chest x-ray to verify catheter placement is correct. A chest x-ray is required to confirm correct catheter placement before TPN administration to ensure the catheter tip is in the superior vena cava and to rule out complications like pneumothorax.