A nurse is preparing to administer dextrose 5% in water 40 mL IV to infuse over 20 min to a child. The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["120"]
Step-by-Step Solution:
Determine the total infusion time in hours.
The infusion time is 20 minutes.
There are 60 minutes in an hour.
The infusion time in hours = 20 minutes / 60 minutes/hour = 0.3333 hours.
Calculate the infusion rate in mL/hr.
The total volume to be infused is 40 mL.
The infusion time is 0.3333 hours.
The infusion rate = 40 mL / 0.3333 hours = 120 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.5"]
Explanation
Identify the given information:
Dose of methimazole: 0.3 mg/kg/day
Weight of the child: 55 lb
Concentration of methimazole tablets: 5 mg/tablet
Convert the child's weight from pounds to kilograms:
1 lb ≈ 0.453592 kg
Calculate the total daily dose of methimazole in mg:
Total daily dose = Dose/kg/day x Weight (kg)
Substitute the values:
Total daily dose = 0.3 mg/kg/day x 55 lb x (0.453592 kg/1 lb)
Total daily dose ≈ 7.48 mg
Calculate the dose per dose (every 8 hours):
Dose per dose = Total daily dose / 3
Substitute the values:
Dose per dose = 7.48 mg / 3
Dose per dose ≈ 2.49 mg
Calculate the number of tablets to be administered:
Number of tablets = Dose per dose (mg) / Concentration (mg/tablet)
Substitute the values:
Number of tablets = 2.49 mg / 5 mg/tablet
Number of tablets ≈ 0.498
Round the answer to the nearest tenth:
Number of tablets ≈ 0.5 tablets
Correct Answer is ["3"]
Explanation
Identify the given information:
Dose of azithromycin: 10 mg/kg
Weight of the toddler: 27 lb
Concentration of azithromycin suspension: 200 mg/5 mL
Convert the toddler's weight from pounds to kilograms:
1 lb ≈ 0.453592 kg
Calculate the total dose of azithromycin in mg:
Total dose = Dose/kg x Weight (kg)
Substitute the values:
Total dose = 10 mg/kg x 27 lb x (0.453592 kg/1 lb)
Calculate the result:
Total dose ≈ 122.47 mg
Calculate the volume of azithromycin suspension to be administered:
Volume = Total dose (mg) / Concentration (mg/mL)
Substitute the values:
Volume = 122.47 mg / (200 mg/5 mL)
Calculate the result:
Volume ≈ 3.06 mL
Round the answer to the nearest whole number:
Volume ≈ 3 mL
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