A child weighing 10 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: B. 50 mg
- Step 1: Daily dose = 20 x 10 = 200 mg.
- Step 2: Each dose = 200 / 4 = 50 mg.
Answer
50 mg.
Why not the others: 200 mg is the whole daily dose; the other values ignore the weight or multiply instead of dividing.
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