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Difficulty: MediumPharmacological and Parenteral Therapies

A client with new-onset atrial fibrillation is prescribed a continuous intravenous (IV) infusion of amiodarone at a rate of 11 mg/min. The pharmacy dispenses an IV bag containing 900900 mg of amiodarone in 500500 mL of 5%5\% dextrose in water (D5WD_5W). At what rate, in mL/hr, should the nurse program the IV infusion pump? (Record your answer to the nearest tenth).

Answer: 33.3 mL/hr

Answer

33.3
To determine the correct IV pump setting, the nurse must first convert the 11 mg/min prescription to an hourly dose (6060 mg/hr). Then, by dividing the desired hourly dose by the total amount of medication in the bag (900900 mg) and multiplying by the total volume (500500 mL), the nurse calculates the required flow rate of 33.333...33.333... mL/hr. Rounding to the nearest tenth gives the final programmed rate of 33.333.3 mL/hr.

Step-by-Step Solution

1
Convert the prescribed dose from per minute to per hour.
6060 mg/hr
IV infusion pumps are programmed to deliver fluids in mL/hr, so the prescribed medication dose must first be standardized to an hourly rate.
2
Calculate the required volume to deliver the hourly dose based on the supplied concentration.
33.333...33.333... mL/hr
Using the desired over have formula multiplied by volume: (Desired Dose / Have) x Volume. So, (60/900)×500=33.333...(60 / 900) \times 500 = 33.333...
3
Round the final calculated rate to the nearest tenth.
33.333.3 mL/hr
The question explicitly specifies to record the final answer rounded to the nearest tenth.

Key Concept

Intravenous medication dosage calculation and infusion pump programming
Estimated Time:1m 30s
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Topics

Pharmacological and Parenteral Therapies

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