For a patient prescribed digoxin IV 0.375 mg and the available vial concentration is 0.25 mg/mL, how many milliliters should be administered?

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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

For a patient prescribed digoxin IV 0.375 mg and the available vial concentration is 0.25 mg/mL, how many milliliters should be administered?

Explanation:
When converting a prescribed drug amount to the administration volume, use volume = dose ÷ concentration. For this digoxin order, the dose is 0.375 mg and the vial concentration is 0.25 mg/mL. So the volume to give is 0.375 mg ÷ 0.25 mg/mL = 1.5 mL. Therefore, administer 1.5 mL IV. Remember, digoxin has a narrow therapeutic range, so always double-check the calculation against the order and concentration before administration.

When converting a prescribed drug amount to the administration volume, use volume = dose ÷ concentration. For this digoxin order, the dose is 0.375 mg and the vial concentration is 0.25 mg/mL. So the volume to give is 0.375 mg ÷ 0.25 mg/mL = 1.5 mL. Therefore, administer 1.5 mL IV. Remember, digoxin has a narrow therapeutic range, so always double-check the calculation against the order and concentration before administration.

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