A child with growth failure is receiving somatropin (DNA origin) 25 mg subcutaneously (subQ) daily. The nurse reconstitutes the vial with 5 mL of bacteriostatic water for injection to yield a solution concentration of 5 mg/mL. How many mL should the nurse administer? (Enter numeric value only. It rounding is required, round to the nearest hundredth.)
The Correct Answer is ["0.25"]
Given Information:
Prescribed dose: 1.25 mg
Concentration: 5 mg/mL
Calculate the volume to be administered
Volume to be administered = Prescribed dose / Concentration
Volume to be administered = 1.25 mg / 5 mg/mL = 0.25 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["21"]
Explanation
Given Information:
Volume: 2 liters
Infusion time: 24 hours
Drop factor: 15 gtt/mL
Convert liters to milliliters
2 liters x 1000 mL/liter = 2000 mL
Calculate the total infusion time in minutes
24 hours x 60 min/hour = 1440 minutes
Calculate the infusion rate in mL/min
Infusion rate = Total volume / Infusion time
Infusion rate = 2000 mL / 1440 min = 1.39 mL/min
Calculate the gtt/min
gtt/min = Infusion rate (mL/min) x Drop factor (gtt/mL)
gtt/min = 1.39 mL/min x 15 gtt/mL = 20.85 gtt/min
Round to the nearest whole number (as instructed)
gtt/min = 21 gtt/min
Correct Answer is ["18"]
Explanation
Given Information:
Prescribed dose: 60 mg
Concentration: 10 mg/mL
Infusion time: 20 minutes
Calculate the volume of furosemide to be administered
Volume to be administered = Prescribed dose / Concentration
Volume to be administered = 60 mg / 10 mg/mL = 6 mL
Calculate the total infusion time in hours
20 minutes / 60 min/hour = 0.33 hours
Calculate the infusion rate in mL/hour
Infusion rate = Total volume / Infusion time
Infusion rate = 6 mL / 0.33 hours = 18.18 mL/hour
Round to the nearest whole number (as instructed)
Infusion rate = 18 mL/hour
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