Question

a child is receiving 100 mg of an antibiotic po q12h. the child weighs 33 lbs. how many mg\kg\day is the child receiving? mg\kg\day (if decimal, round to the tenth place.)

Explanation:

Step1: Convert pounds to kilograms

Since \(1\) kg \( = 2.2\) lbs, then the child's weight in kg is \(33\div2.2=15\) kg.

Step2: Calculate the daily dose

The antibiotic is given every \(12\) hours (\(q12h\)), so there are \(24\div12 = 2\) doses per day. The daily dose in mg is \(100\times2=200\) mg.

Step3: Calculate mg/kg/day

Divide the daily dose (in mg) by the child's weight (in kg). So \(\frac{200}{15}\approx13.3\) mg/kg/day.

Answer:

\(13.3\)