A patient requires administration of 500 ml of an intravenous fluid in 1 hour. What is the
approximate drip rate (number of drops per minute) at which the fluid should be administered, if the volume of a drop is 0.05 ml?

Correct option is C

Given:-

A patient requires administration of 500 ml of an intravenous fluid in 1 hour.

Formula Used:-

​$$\text{Total Drops} = \frac{\text{Total Volume}}{\text{Volume of 1 Drop}}$$

$$\text{Drip Rate} = \frac{\text{Total Drops}}{\text{Time in Minutes}}$$

Solution:-

The volume of one drop is given as 0.05 mL.
The total number of drops in 500 mL is = $$\text{Total Drops} = \frac{500}{0.05} = 10{,}000 \, \text{drops}.$$

The fluid must be administered in 1 hour =60 minutes

$$\text{Drip Rate} = \frac{10{,}000}{60} \approx 167 \, \text{drops per minute}.$$

Thus, the correct answer is (C) 167