Question

a physician orders 120 mg of medication. in stock is a vial of the medication with a dosage strength of 100mg/2ml. what volume of the in - stack medication should be administered? 1. 2.1 ml 2. 2.4 ml 3. 12 ml 4. 24 ml

Explanation:

Step1: Determine dosage - volume ratio

The dosage strength is 100mg per 2mL, so the ratio is $\frac{100mg}{2mL}= 50mg/mL$.

Step2: Calculate required volume

We need 120mg of medication. Using the ratio, the volume $V=\frac{120mg}{50mg/mL}=2.4mL$.

Answer:

B. 2.4 mL