A client who weighs 60 kg receives a prescription for lorazepam 44 mcg/kg IV to be administer 20 minutes before a scheduled procedure. The medication is available in 2 mg/mL vial. How many mg of lorazepam should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["2.6"]
Calculate the prescribed dose in micrograms:
Dose (mcg) = Prescribed dose (mcg/kg) x Client's weight (kg)
= 44 mcg/kg x 60 kg
= 2640 mcg
Convert the dose from micrograms to milligrams:
Dose (mg) = Dose (mcg) / 1000 mcg/mg
= 2640 mcg / 1000 mcg/mg
= 2.64 mg
Round to the nearest tenth:
Rounded dose = 2.6 mg
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["12.5"]
Explanation
Desired dose = 150 mg
Available concentration = 60 mg / 5 mL
Calculate the volume to administer:
Volume to administer (mL) = Desired dose (mg) / Concentration (mg/mL)
= 150 mg / (60 mg / 5 mL)
= 150 mg / 12 mg/mL
= 12.5 mL
Correct Answer is ["125"]
Explanation
Total volume to be infused = 250 mL
Infusion time in hours = 2 hours
Calculate the infusion rate in mL per hour:
Infusion rate (mL/hour) = Total volume (mL) / Infusion time (hours)
= 250 mL / 2 hours
= 125 mL/hour
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