The Nurse Is Preparing to Change the IV Solution After

The nurse is preparing to change the IV solution after the current one infuses.What action is most appropriate for the nurse to take?

A) Hang another bag of the identical IV solution.
B) Change the tubing when preparing a new IV bag.
C) Allow IV fluid to empty into the upper part of the tubing.
D) Change the bag when approximately 50 mL is left in the old bag.