Examples · Weight-based dose (mg/kg)
Worked example
Weight-based dose (mg/kg) — practice problem 4
A patient weighs 80 kg. The prescriber orders clindamycin 10 mg/kg/day divided into 2 equal doses.
Weight80 kg
Ordered10 mg/kg/day
Frequency2 doses/day
How many mg is each dose?
Answer: 400 mg per dose
Step-by-step solution
1. Multiply weight by the ordered mg/kg/day
80 kg × ( 10 mg ÷ 1 kg )
= 800 mg/day
2. Divide the daily dose into 2 equal doses
800 mg/day ÷ 2 doses
= 400 mg per dose
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