Worked example

Weight-based dose (mg/kg) — practice problem 12

A patient weighs 60 kg. The prescriber orders gentamicin 20 mg/kg/dose.

Weight60 kg
Ordered20 mg/kg/dose

How many mg is the dose?

Answer: 1200 mg

Step-by-step solution

1. Multiply weight by the ordered mg/kg
60 kg × ( 20 mg ÷ 1 kg )
= 1200 mg

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