A drug is prescribed at 5 mg per kg of body weight. How many mg should a patient weighing 45 kg receive?
Answer and explanation
Correct answer: C. 225 mg
- Step 1: Dose = dose per kg x weight. Step 2. 5 x 45 = 225 mg. Answer: 225 mg. Why not the others: 0.1 mg: the dose was divided by the weight. 50 mg: weight and dose were added. 2250 mg: an extra factor of 10 was applied.
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