The nurse is providing medication instructions for iron supplements to a patient with anemia. Which information is included?

At the beginning of the shift, the nurse assesses the patient receiving total parenteral nutrition (TPN) via a peripherally inserted central catheter and notes a crack in the tubing with TPN leaking. The nurse notifies the provider and anticipates receiving which order first? 

The provider orders hypertonic saline for a patient. The patient’s wife wants to know why this therapy is being given. Which of the following is the best statement regarding the rationale for this therapy?