Question

a nurse is preparing to administer hydromorphone 4 mg po every 4 hr prn for pain. available is hydromorphone oral liquid 1 mg/1 ml. how many ml should the nurse administer per dose? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.)

Explanation:

Step1: Identify the ratio and required dose

The ratio is 1 mg per 1 mL, and the required dose is 4 mg.

Step2: Set up proportion

Let $x$ be the volume in mL. The proportion is $\frac{1\ mg}{1\ mL}=\frac{4\ mg}{x\ mL}$.

Step3: Solve for $x$

Cross - multiply: $1\times x = 4\times1$. So $x = 4$ mL.

Answer:

4