A nurse is reviewing a client's prescription for 1,000 mL of 5% dextrose in water IV to infuse over 8 hr. At 1400, the nurse observes that there is 500 mL of solution remaining in the client's current IV bag. At what time should the nurse administer the next bag of IV solution?

Step 1 is: Calculate the total milliliters (mL) to infuse over the remaining time. Total mL prescribed is 1,000 mL. Remaining solution is 500 mL. 1,000 mL - 500 mL = 500 mL remaining to infuse. Step 2 is: Calculate the infusion rate in milliliters per hour (mL/hr). Total volume is 1,000 mL. Total infusion time is 8 hr. 1,000 mL ÷ 8 hr = 125 mL/hr. Step 3 is: Calculate the time in hours required to infuse the remaining 500 mL at the calculated rate. 500 mL remaining ÷ 125 mL/hr = 4 hr. Step 4 is: Calculate the time the current IV bag will finish. Current time is 1400. Time remaining for infusion is 4 hr. 1400 + 4 hr = 1800. Step 5 is: State the time the next bag should be administered. The nurse should administer the next bag immediately when the current one finishes. The next bag of IV solution should be administered at 1800.