Hesi rn dosage calculation ( 51 Questions)
An adolescent with meningococcal meningitis is receiving a continuous IV infusion of penicillin G, which is prescribed as 20 million units in a total volume of 2 liters of normal saline every 24 hours. The pharmacy delivers 10 million units/litre of normal saline. How many mL/hour should the nurse program the infusion pump? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 83
Formula:
Infusion rate (mL/hour) = Total volume (mL) / Total time (hours)
Convert total volume from liters to milliliters:
1L = 1000mL
2L = 2 liters x 1000 mL/litre
= 2000 mL
Total volume = 2000 mL
Total infusion time in hours:
Total infusion time = 24 hours
Calculate the infusion rate in mL/hour:
Infusion rate (mL/hour) = Total volume (mL) / Total time (hours)
= 2000 mL / 24 hours
≈ 83.33 mL/hour
Round to the nearest whole number:
Rounded infusion rate = 83 mL/hour
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