A nurse is preparing to administer ondansetron 0.1 mg/kg IV bolus to a toddler who weighs 32 lb. Available is ondansetron injection 2 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.73"]
Step 1: Convert the toddler's weight from pounds to kilograms.
The conversion factor is 1 kg = 2.2 lb.
Weight in kg= 32/2.2≈14.55 kg
Step 2: Calculate the required dose of ondansetron in mg.
Total dose of ondansetron needed:
Dose in mg=0.1 mg/kg×14.55 kg=1.455 mg
Step 3: Determine the volume of ondansetron to administer.
To determine how many mL the nurse should administer, we use the formula:
Volume (mL)=Dose in mg/Concentration in mg/mL=1.455 mg/2 mg/mL=0.7275 mL
Step 4: Round the answer.
Rounding off 0.7275 mL gives 0.73 mL.
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Related Questions
Correct Answer is ["240"]
Explanation
Step-by-step calculation:
The nurse needs to administer 120 mL of sodium chloride.
The infusion time is 30 minutes.
Calculating the flow rate in mL/hr:
Convert the infusion time to hours: 30 minutes ÷ 60 minutes/hour = 0.5 hours
Divide the total volume by the infusion time: 120 mL ÷ 0.5 hours = 240 mL/hour
Correct Answer is ["15"]
Explanation
Step-by-step calculation:
The child's weight is 55 lb.
The medication dosage is 15 mg/kg.
The available medication concentration is 125 mg/5 mL.
Calculating the total dose in mg:
Convert the child's weight to kg: 55 lb ÷ 2.2 lb/kg = 25 kg
Calculate the total dose: 25 kg × 15 mg/kg = 375 mg
Calculating the volume to administer:
Use the concentration of the medication: 375 mg ÷ (125 mg/5 mL) = 375 mg ÷ 25 mg/mL = 15 mL
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