The healthcare provider prescribes a continuous IV infusion of nesiritide 0.01 mcg/kg/minute for a client who weighs 155.1 pounds. The pharmacy provides a 250 mL bag of D5W labeled with the additive nesiritide 5 mg. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["7"]
Given:
Ordered dose of Nesiritide: 0.01 mcg/kg/minute
Patient weight: 155.1 pounds
Bag size: 250 mL D5W
Concentration of Nesiritide: 1.5 mg
Step 1: Convert patient weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Patient weight in kg = 155.1 lbs x 0.453592 kg/lb = 70.3 kg
Step 2: Calculate the total dose of Nesiritide in mcg/minute:
Total dose (mcg/minute) = Ordered dose (mcg/kg/minute) x Patient weight (kg)
Total dose (mcg/minute) = 0.01 mcg/kg/minute x 70.3 kg
Total dose (mcg/minute) = 0.703 mcg/minute
Step 3: Convert mcg/minute to mg/hour:
Total dose (mg/hour) = Total dose (mcg/minute) x 60 minutes/hour / 1000 mcg/mg
Total dose (mg/hour) = 0.703 mcg/minute x 60 minutes/hour / 1000 mcg/mg
Total dose (mg/hour) = 0.04218 mg/hour
Step 4: Calculate the infusion rate in mL/hour:
Infusion rate (mL/hour) = Total dose (mg/hour) / Concentration (mg/mL)
Infusion rate (mL/hour) = 0.04218 mg/hour / (1.5 mg/250 mL)
Infusion rate (mL/hour) = 0.04218 mg/hour x (250 mL/1.5 mg)
Infusion rate (mL/hour) = 7.03 mL/hour
Step 5: Round to the nearest whole number:
Infusion rate (mL/hour) ≈ 7 mL/hour
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["83"]
Explanation
Given:
Volume of fluid: 2 liters (1 liter = 1000 mL, so 2 liters = 2000 mL)
Infusion time: 24 hours
Formula:
Flow rate (mL/hr) = Volume (mL) / Time (hr)
Step 1: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = 2000 mL / 24 hr
Flow rate (mL/hr) = 83.33 mL/hr
Step 2: Round to the nearest whole number:
Flow rate (mL/hr) ≈ 83 mL/hr
Correct Answer is ["38"]
Explanation
Given:
Volume of fluid: 75 mL
Infusion time: 30 minutes
Drop factor: 15 gtt/mL
Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (min)) x Drop factor (gtt/mL)
Step 1: Calculate the infusion rate in mL/min:
Infusion rate (mL/min) = Volume (mL) / Time (min)
Infusion rate (mL/min) = 75 mL / 30 min
Infusion rate (mL/min) = 2.5 mL/min
Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = Infusion rate (mL/min) x Drop factor (gtt/mL)
Flow rate (gtt/min) = 2.5 mL/min x 15 gtt/mL
Flow rate (gtt/min) = 37.5 gtt/min
Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 38 gtt/min
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