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?

Verify the amount of TPN solution the client is receiving every 4 hr.

Prepare the client for a chest x-ray to verify catheter placement.

Use clean technique when changing the catheter dressing.

Place the client in Sims' position for catheter insertion.