The nurse is preparing a dose of ketorolac 12 mg IV using a 1 mL vial containing 30 mg/mL. How many mL should the nurse administer? (Enter numerical value only.)
The Correct Answer is ["0.4"]
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["21"]
Explanation
Here's how to calculate the infusion rate (gtt/min) for the nurse to regulate:
1. We know:
Total volume of D5W solution: 2 L (liters)
Infusion time: 24 hours
IV administration set gtt/mL: 15 gtt/mL
2. We need to find the infusion rate in gtt/min.
Steps:
a. Convert liters to milliliters (mL) for better calculation:
1 liter = 1000 mL
Total volume (mL) = 2 L * 1000 mL/L
Total volume (mL) = 2000 mL
b. Convert infusion time from hours to minutes:
Infusion time (minutes) = Infusion time (hours) x Minutes per hour
Infusion time (minutes) = 24 hours * 60 minutes/hour
Infusion time (minutes) = 1440 minutes
c. Calculate the total volume of solution to be infused per minute:
Volume rate (mL/min) = Total volume (mL) / Infusion time (minutes)
Volume rate (mL/min) = 2000 mL / 1440 minutes
Volume rate (mL/min) = 1.389 mL/min (round to nearest hundredth)
d. Finally, calculate the infusion rate in gtt/min:
Infusion rate (gtt/min) = Volume rate (mL/min) x gtt/mL
Infusion rate (gtt/min) = 1.389 mL/min * 15 gtt/mL
Infusion rate (gtt/min) = 20.835 gtt/min (round to nearest whole number as requested)
Therefore, the nurse should regulate the infusion at approximately 21 gtt/min
Correct Answer is ["1.8"]
Explanation
Here's how to calculate the volume (mL) of diazepam the nurse should administer:
Calculate the total dose of diazepam for the child:
Dose per kg: 0.3 mg/kg (given)
Child's weight: 30 kg (given)
Total dose (mg) = Dose per kg (mg/kg) x Child's weight (kg)
Total dose (mg) = 0.3 mg/kg * 30 kg
Total dose (mg) = 9 mg (round to nearest whole number)
Concentration of the medication:
The medication is available in 5 mg/mL vials (given).
Calculate the volume to administer:
Volume to administer (mL) = Total dose (mg) / Concentration (mg/mL)
Volume to administer (mL) = 9 mg / 5 mg/mL
Volume to administer (mL) = 1.8 mL (round to nearest tenth)
Therefore, the nurse should administer approximately 1.8 mL of diazepam intravenously.
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