The dosage of a medication is 2.5 mg per kilogram of body weight. What would be the dose for a patient who weighs 72 pounds? (1 lb = 0.453 kg). Doses are rounded to the nearest 25 mg.

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Multiple Choice

The dosage of a medication is 2.5 mg per kilogram of body weight. What would be the dose for a patient who weighs 72 pounds? (1 lb = 0.453 kg). Doses are rounded to the nearest 25 mg.

Explanation:
Converting weight to kilograms is the first step: 72 lb × 0.453 kg/lb ≈ 32.616 kg. Multiply by the dosage per kilogram: 32.616 kg × 2.5 mg/kg ≈ 81.54 mg. Doses are rounded to the nearest 25 mg, and 81.54 mg lies closest to 75 mg (the next 25 mg step, 100 mg, is farther away). So the dose is 75 mg.

Converting weight to kilograms is the first step: 72 lb × 0.453 kg/lb ≈ 32.616 kg. Multiply by the dosage per kilogram: 32.616 kg × 2.5 mg/kg ≈ 81.54 mg. Doses are rounded to the nearest 25 mg, and 81.54 mg lies closest to 75 mg (the next 25 mg step, 100 mg, is farther away). So the dose is 75 mg.

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