Hesi rn dosage calculation d441 proctored exam
Calculation
The healthcare provider (HCP) prescribes lidocaine 4 mg/minute IV for a client experiencing premature ventricular contractions. The IV bag contains "Lidocaine 1 gram in dextrose 5% in water 500 mL How many mL/hr should the nurse program the infusion pump to deliver? (Enter numerical value only.)
mL/hr
Explanation & Rationale
Given Information: Prescribed dose: 4 mg/minute Total lidocaine in the bag: 1 gram (1000 mg) Total volume of the bag: 500 mL Calculate the total dose per hour: Total dose per hour = Prescribed dose per minute x 60 minutes/hour Total dose per hour = 4 mg/minute x 60 minutes/hour = 240 mg/hour Calculate the time it takes to infuse the lidocaine Time = Total lidocaine / Total dose per hour Time = 1000 mg / 240 mg/hour = 4.17 hours Calculate the infusion rate in mL/hour Infusion rate = Total volume / Time Infusion rate = 500 mL / 4.17 hours = 119.8 mL/hour Round to the nearest whole number (as instructed) Infusion rate = 120 mL/hour
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