A drug order requires 2.5 mg/kg over a 24-hour period. If the patient weighs 18 kg, how many milligrams are given per day?

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Multiple Choice

A drug order requires 2.5 mg/kg over a 24-hour period. If the patient weighs 18 kg, how many milligrams are given per day?

Explanation:
Multiply the dose per kilogram by the patient’s weight to get the total daily dose. 2.5 mg/kg × 18 kg = 45 mg per day. So the patient should receive 45 mg in 24 hours. If you see other totals like 40, 50, or 60 mg, they would correspond to different per-kilogram doses (approximately 2.22, 2.78, or 3.33 mg/kg, respectively) and do not match the prescribed 2.5 mg/kg.

Multiply the dose per kilogram by the patient’s weight to get the total daily dose. 2.5 mg/kg × 18 kg = 45 mg per day. So the patient should receive 45 mg in 24 hours. If you see other totals like 40, 50, or 60 mg, they would correspond to different per-kilogram doses (approximately 2.22, 2.78, or 3.33 mg/kg, respectively) and do not match the prescribed 2.5 mg/kg.

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