Question

multiple choice 1 point a client is ordered morphine sulphate 8 mg im q4h prn for pain. the medication is available 4 mg per ml. how many ml of medication should the nurse administer for each single dose? 2 ml 8 ml 4 ml 0.5 ml

Explanation:

Step1: Set up ratio - proportion

Let $x$ be the volume in mL to be administered. We know that the concentration is 4 mg per mL and the ordered dose is 8 mg. So the ratio - proportion is $\frac{4\ mg}{1\ mL}=\frac{8\ mg}{x\ mL}$.

Step2: Cross - multiply and solve

Cross - multiplying gives $4x = 8\times1$. Then $x=\frac{8}{4}=2$ mL.

Answer:

2 mL