High School

A patient who weighs 197 lb is receiving medication at the rate of 35 mL/h. The concentration of the IVPB solution is 200 mg in 50 mL NS. The recommended dosage range is 0.1-0.3 mg/kg/min. Is the patient receiving a safe dose?

Answer :

The patient is receiving a safe dose of medication since the calculated dosage falls within the recommended dosage range of 0.1-0.3 mg/kg/min.

To determine if the patient is receiving a safe dose, we need to calculate the medication dosage and compare it to the recommended dosage range.

First, we convert the patient's weight from pounds to kilograms: 197 lb ÷ 2.205 lb/kg ≈ 89.2 kg.

Next, we calculate the total amount of medication administered per hour by multiplying the concentration of the IVPB solution by the infusion rate: (200 mg/50 mL) × 35 mL/h = 140 mg/h.

To find the dosage per minute, we divide the hourly dosage by 60 minutes: 140 mg/h ÷ 60 min ≈ 2.33 mg/min.

Finally, we calculate the dosage per kilogram per minute by dividing the dosage per minute by the patient's weight in kilograms: 2.33 mg/min ÷ 89.2 kg ≈ 0.026 mg/kg/min.

The calculated dosage of 0.026 mg/kg/min falls within the recommended dosage range of 0.1-0.3 mg/kg/min. Therefore, the patient is receiving a safe dose of the medication.

Learn more about range here:

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