A nurse is caring for a client who is receiving lactated Ringer's at a rate of 100 mL/hr. The nurse initiates a 1000 mL bag of solution at 0700. The nurse should expect to hang another bag of IV solution at which of the following times?
Explanation & Rationale
A. 1100: At 100 mL/hr, only 400 mL would be infused by 1100, meaning the IV bag would still have 600 mL remaining. Therefore, 1100 is too early to expect the need for a new bag. B. 2200: By 2200, 1,500 mL would have been infused, exceeding the original 1,000 mL in the bag. This time is too late, as the bag would be depleted well before then, risking an interruption in fluid therapy. C. 1300: At 1300, 600 mL would have been infused, leaving 400 mL in the bag. The nurse would not need to replace the IV bag yet, making this time premature for a bag change. D. 1700: At a rate of 100 mL/hr, the 1,000 mL IV bag will be completely infused in 10 hours. Since the infusion began at 0700, the nurse should expect to hang a new bag by 1700 to ensure uninterrupted fluid administration.