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?

Choice A reason: Sims’ position is for rectal exams, not central catheter insertion. Trendelenburg or supine is used, so this is incorrect for TPN prep.Choice B reason: Verifying TPN amount is ongoing care, not insertion prep. Initial placement confirmation via x-ray takes precedence over infusion monitoring here.Choice C reason: Clean technique risks infection in central lines; sterile is required. This compromises TPN safety, making it an incorrect preparatory step.Choice D reason: Chest x-ray confirms catheter tip placement in the vena cava for TPN. It’s a critical prep step to ensure safe administration begins.