What is the correct infusion rate if MD orders 1000 mL of normal saline (NS) to be administered over 6 hours?

To determine the correct infusion rate for administering 1000 mL of normal saline over 6 hours, one must first convert the time into hours and then calculate the rate by dividing the total volume by the total time.

In this scenario, the total volume to be infused is 1000 mL and the total time is 6 hours. The calculation can be performed as follows:

Infusion rate = Total volume (mL) / Total time (hours)

Infusion rate = 1000 mL / 6 hours = 166.67 mL/hr

This calculation leads to the conclusion that the infusion rate should be set at 166.67 mL/hr to ensure that the entire volume is administered within the specified time frame of 6 hours. This corresponds with the correct choice, which reflects an accurate understanding of medication administration principles.