Examples · Weight-based dose (mg/kg)
Worked example
Weight-based dose (mg/kg) - practice problem 7
A patient weighs 50 kg. The prescriber orders clindamycin 30 mg/kg/day divided into 4 equal doses.
Weight50 kg
Ordered30 mg/kg/day
Safe max40 mg/kg/day
Frequency4 doses/day
How many mg is each dose?
Answer: 375 mg per dose
Step-by-step solution
1. Multiply weight by the ordered mg/kg/day
50 kg × ( 30 mg ÷ 1 kg )
= 1500 mg/day
2. Divide the daily dose into 4 equal doses
1500 mg/day ÷ 4 doses
= 375 mg per dose
More weight-based dose (mg/kg) examples