Question

A provider orders Unasyn 300 mg/kg/day, IV, divided evenly into a doses to be given every 6 hours for 7 days. The patient weighs 124 lbs. Calculate the dosage (in mg) of Unasyn that the patient will receive per dose. Round the nearest whole mg.

Answer 1

Step: 1 Convert weight from pounds to the kilogram.

The patient weighs 124lbs.

So, the weight of the patient is 56.24 Kg.

Step: 2. Calculate the total dosage per day.

The provider ordered Unasyn 300mg/kg/day.

The patient weighs 56.24 Kg.

So the total dosage 56.24 * 300 = 16,872 mg/day.

Step:3. Calculate the number of doses per day.

The provider ordered for every 6hours for 7 days.

So per day 24/ 6 = 4 doses per day for 7 days. Totally 28 doses.

As per provider order 4 doses of IV to be administered per day.

Step: 4. Calculate the dosage for per dose.

16,872 mg totally to be administered per day.

So it will be divided into 4 doses.

4218 mg per dose per day.

If it divided evenly for 7 days means 4218 / 7 = 602.57mg /dose.

Rounded the whole number as 603 mg.

Unasyn will receive the dosage of 603mg per dose.