Five hundred (500) milliliters of sodium chloride 0.9% is prescribed to be given over 4 hours using a volumetric pump. What's the infusion rate in milliliters/hour?

Given:

Volume of 0.9% NaCl = 500 ml

Time (t) = 4 hrs

To determine:

The infusion rate of NaCl in ml/hr

Explanation:

Based on the information - 500 ml of NaCl is to be given over a time span of 4 hrs

Hence, the volume of NaCl to be administered per hr is:-

= 1 hr * 500 ml/4 hr = 125 ml

Ans: Infusion rate = 125 ml/hr