A child weighing 15 kg is prescribed a drug at 20 mg/kg/day divided into 4 equal doses. How many mg should each dose contain?
Answer and explanation
Correct answer: C. 75 mg
- Step 1: Daily dose = 20 x 15 = 300 mg.
- Step 2: Each dose = 300 / 4 = 75 mg.
Answer
75 mg.
Why not the others: 300 mg is the whole daily dose; the other values ignore the weight or multiply instead of dividing.
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