A patient weighs 40 kg. The order is 0.4 mg/kg IV every 8 hours. How many milligrams should be given per dose?

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Study for the Archer Pharmacology Test to master dosage calculations and medication administration. Use flashcards and multiple choice questions with detailed explanations. Get ready for your exam!

Multiple Choice

A patient weighs 40 kg. The order is 0.4 mg/kg IV every 8 hours. How many milligrams should be given per dose?

Explanation:
To find the milligrams per dose, multiply the patient’s weight in kilograms by the ordered dose per kilogram. 40 kg × 0.4 mg/kg = 16 mg per dose. The every-8-hours interval affects how many doses occur per day (three doses in 24 hours), but it doesn’t change the amount given each time. So the per-dose amount is 16 mg.

To find the milligrams per dose, multiply the patient’s weight in kilograms by the ordered dose per kilogram. 40 kg × 0.4 mg/kg = 16 mg per dose. The every-8-hours interval affects how many doses occur per day (three doses in 24 hours), but it doesn’t change the amount given each time. So the per-dose amount is 16 mg.

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