A nurse is preparing to administer clindamycin 10 mg/kg IM to a school-age child who weighs 77 lb. Available is clindamycin injection 150 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2.3"]
Step-by-step calculation:
The child's weight is 77 lb.
The medication dosage is 10 mg/kg.
The available medication concentration is 150 mg/mL.
Calculating the total dose in mg:
Convert the child's weight to kg: 77 lb ÷ 2.2 lb/kg = 35 kg
Calculate the total dose: 35 kg × 10 mg/kg = 350 mg
Calculating the volume to administer:
Use the concentration of the medication: 350 mg ÷ 150 mg/mL = 2.33 mL
Rounding the answer:
2.33 rounds to 2.3 mL
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Related Questions
Correct Answer is ["0.73"]
Explanation
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.
Correct Answer is ["0.4"]
Explanation
Step by step calculation:
The child's weight is 22 lb.
The medication dosage is 3 mg/kg.
The available medication concentration is 45 mg/0.6 mL.
Calculating the total dose in mg per dose:
Convert the child's weight to kg: 22 lb ÷ 2.2 lb/kg = 10 kg
Calculate the total dose per dose: 10 kg × 3 mg/kg = 30 mg
Calculating the volume to administer per dose:
Use the concentration of the medication: 30 mg ÷ (45 mg/0.6 mL) = 30 mg ÷ 75 mg/mL = 0.4 mL
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