A nurse is preparing to administer TPN 1800 mL to infuse over 24 hours. How many mL/hr should the nurse set the IV pump to deliver?

To calculate the mL/hour that needs to be set on the IV pump for administering TPN (Total Parenteral Nutrition), you divide the total volume of TPN to be infused by the total hours over which it will be infused. In this case, the total volume of TPN is 1800 mL, and the duration of infusion is set for 24 hours.

The calculation is as follows:

1800 mL ÷ 24 hours = 75 mL/hr

This means that to administer the full 1800 mL of TPN over a 24-hour period, the IV pump should be set to deliver 75 mL per hour.

Setting the infusion rate to this calculated value ensures that the patient receives the correct amount of nutrition and fluids over the designated time frame, which is crucial for maintaining proper nutritional levels and preventing complications associated with TPN, such as fluid overload or underfeeding.