A 9-year-old child who weighs 66 lb is to receive gentamicin sulfate 2 mg/kg/dose every 8 hours for an Escherichia coli urinary tract infection. How many mg per dose should this child receive? (Enter numeric value only.)
The Correct Answer is ["60"]
Here's how to calculate the gentamicin dosage per dose for the child:
Client weight conversion:
Client weight: 66 lbs
We need the weight in kilograms (kg) for the medication dosage.
Conversion factor: 1 kg = 2.205 lbs
Client weight (kg) = 66 lbs / 2.205 lbs/kg = 30 kg (round to nearest whole number)
Gentamicin dosage:
Prescribed dose: 2 mg/kg/dose (given)
Calculate the total gentamicin amount per dose:
Total dose (mg/dose) = Dose (mg/kg/dose) x Client weight (kg)
Total dose (mg/dose) = 2 mg/kg/dose * 30 kg
Total dose (mg/dose) = 60 mg (round to nearest whole number)
Therefore, the child should receive 60 mg of gentamicin sulfate per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.4"]
Explanation
here's how to calculate the volume (mL) of ketorolac the nurse should administer:
1. Dose of ketorolac to administer:
Dose = 12 mg (given)
2. Concentration of ketorolac in the vial:
Concentration = 30 mg/mL (given)
3. We need to find the volume (mL) containing the prescribed dose (12 mg) considering the concentration (30 mg/mL) in the vial.
Volume to administer (mL): Dose (mg) / Concentration (mg/mL)
Volume to administer (mL): 12 mg / 30 mg/mL
Volume to administer (mL) = 0.4 mL (round to nearest tenth)
Therefore, the nurse should administer approximately 0.4 mL of ketorolac intravenously.
Correct Answer is ["18"]
Explanation
Here's how to calculate the infusion rate (mL/hour) for the nurse to administer furosemide 60 mg IV every 12 hours:
1. Furosemide dose per administration:
Dose = 60 mg (given)
2. Dosage frequency (conversion from hours to minutes):
Frequency (minutes) = 12 hours/dose * 60 minutes/hour
Frequency (minutes) = 720 minutes/dose
3. Medication concentration:
Concentration = 10 mg/mL (given)
4. Infusion duration:
Duration = 20 minutes (given)
5. We need to find the total volume (mL) of the medication to be delivered and then convert that volume to a rate per hour (mL/hour).
Steps:
a. Calculate the volume to be infused (mL):
Volume (mL) = Dose (mg) / Concentration (mg/mL)
Volume (mL) = 60 mg / 10 mg/mL
Volume (mL) = 6 mL
b. Convert infusion duration from minutes to hours:
Infusion time (hours) = Infusion time (minutes) / 60 minutes/hour
Infusion time (hours) = 20 minutes / 60 minutes/hour
Infusion time (hours) = 1/3 hour
c. Calculate the infusion rate (mL/hour):
Infusion rate (mL/hour) = Volume (mL) / Infusion time (hours)
Infusion rate (mL/hour) = 6 mL / (1/3 hour)
Infusion rate (mL/hour) = 18 mL/hour
Therefore, the nurse should set the infusion pump to deliver approximately 18 mL/hour.
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