A drug is prescribed at 15 mg per kg of body weight. How many mg should a patient weighing 20 kg receive?
Answer and explanation
Correct answer: A. 300 mg
- Step 1: Dose = dose per kg x weight. Step 2. 15 x 20 = 300 mg. Answer: 300 mg. Why not the others: 0.8 mg: the dose was divided by the weight. 35 mg: weight and dose were added. 3000 mg: an extra factor of 10 was applied.
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