Question

a nurse is preparing to administer amoxicillin/clavulanate 250 mg po every 12 hr. refer to the medication label below. how many ml should the nurse administer? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.) 125 mg/5 ml directions for mixing: tap bottle until all powder flows freely. add approximately 2/3 of total water for reconstitution (total 67 ml). shake vigorously to wet powder. add remaining water; again shake vigorously. dosage: see accompanying prescribing information. when reconstituted, each 5 ml contains: amoxicillin 125 mg, as the trihydrate clavulanic acid, 31.25 mg, as clavulanate potassium 75ml (when reconstituted) keep tightly closed. shake well before using. must be refrigerated. discard after 10 days.

Explanation:

Step1: Set up proportion

Let $x$ be the volume in mL to be administered. The proportion is $\frac{125\ mg}{5\ mL}=\frac{250\ mg}{x\ mL}$.

Step2: Cross - multiply

$125x = 250\times5$.

Step3: Solve for $x$

$x=\frac{250\times5}{125}$.
$x = 10$.

Answer:

10