If a 500 ml IV bag is administered over 4 hours, what is the infusion rate?

To find the infusion rate, you need to divide the total volume of the IV bag by the total time of infusion. In this case, the total volume is 500 ml, and the total time for administration is 4 hours.

The calculation would be:

Infusion rate = Total volume / Total time

Infusion rate = 500 ml / 4 hours

Infusion rate = 125 ml/hr

This indicates that the correct infusion rate is indeed 125 ml/hr, which corresponds to the choice selected.

Understanding this concept is crucial in pharmacy practice, as calculating infusion rates accurately ensures that patients receive the correct dosage of medication in a timely manner, which is critical for effective treatment.