Question

If a doctor prescribes $800$ mL of the medication to be delivered over the course of $8$ hours via IV drip, which delivers $1$ mL of medication over the course of $30$ drips, then how many drips per minute are needed to deliver the prescribed dosage?

• A. 40
• B. 50
• C. 60
• D. 70

Answer 1

The correct option is B 50

The medicine has to be delivered at $\frac{800ml}{8hours}=100$ ml/hours $=\frac{100ml}{60min}=\frac{5}{3}$ ml/min.

Now $1$ ml $\Rightarrow 30$ drip.

Hence, $\frac{5}{3}$ ml/min $=\frac{5\times 30drip}{3min}=50$ drips/min.

Hence, the required rate is $50$ drips/min.