Question

tylenol elixir 650 mg is ordered. you have 125 mg per 1 ml on - hand. how many milliliters should you administer to the patient per dose?
3
4.2
5.2
10

Explanation:

Step1: Set up proportion

Let $x$ be the volume in mL. The proportion is $\frac{125\ mg}{1\ mL}=\frac{650\ mg}{x\ mL}$.

Step2: Cross - multiply and solve for $x$

$125x = 650\times1$, so $x=\frac{650}{125}=5.2$.

Answer:

C. 5.2