A client is receiving a 200 ml bolus of 0.9% sodium chloride to be infused over 20 minutes. The nurse should set the infusion pump deliver how many mL/hour? (Enter numeric value only.)
The Correct Answer is ["600"]
Given:
Volume of fluid: 200 mL
Infusion time: 20 minutes
Formula:
Flow rate (mL/hr) = Volume (mL) / Time (hr)
Step 1: Convert infusion time from minutes to hours:
Infusion time (hr) = 20 minutes / 60 minutes/hr
Infusion time (hr) = 1/3 hour
Step 2: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = 200 mL / (1/3) hr
Flow rate (mL/hr) = 200 mL x (3/1) hr
Flow rate (mL/hr) = 600 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["100"]
Explanation
Given:
Volume of fluid: 2 liters (1 liter = 1000 mL, so 2 liters = 2000 mL)
Infusion time: 20 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 / 20 hr
Flow rate (mL/hr) = 100 mL/hr
Correct Answer is ["7"]
Explanation
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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