Question

a nurse is preparing to administer ibuprofen 100 mg po every 6 hr to a toddler. the amount available is ibuprofen suspension 200 mg/5 ml. how many ml should the nurse administer per dose? (round the answer to the nearest tenth/whole number. use a leading zero if it applies. do not use a trailing zero)

Explanation:

Step1: Set up proportion

Let \( x \) be the volume in mL to administer. The proportion is \(\frac{200\space mg}{5\space mL}=\frac{100\space mg}{x\space mL}\)

Step2: Cross - multiply

\( 200x = 100\times5 \)

Step3: Solve for \( x \)

\( 200x=500 \), so \( x=\frac{500}{200} = 2.5 \)

Answer:

\( 2.5 \)