A nurse is preparing to administer buprenorphine 4 mcg/kg IV bolus to a child who weighs 74 lb. Available is buprenorphine injection 0.3 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 ["0.45"]
Calculating the total dose in mg:
Convert the child's weight to kg: 74 lb ÷ 2.2 lb/kg = 33.64 kg
Calculate the total dose: 33.64 kg × 4 mcg/kg = 134.56 mcg
Converting mcg to mg:
1 mg = 1000 mcg
134.56 mcg ÷ 1000 mcg/mg = 0.13456 mg
Calculating the volume to administer:
Use the concentration of the medication: 0.13456 mg ÷ 0.3 mg/mL = 0.45 mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1"]
Explanation
Step 1: Identify the conversion factor.
We need to convert milliliters (mL) to ounces (oz). The conversion factor is:
1 ounce (oz) = 30 milliliters (mL)
Step 2: Set up the conversion.
The prescribed dose is 30 mL. We want to convert 30 mL to ounces.
Using the conversion factor:
Amount in oz=Amount in mL/Conversion factor=30 mL/30 mL/oz
Step 3: Perform the calculation.
Amount in oz=30/30=1 oz
Step 4: Round the answer (if needed).
1 oz is a whole number
Correct Answer is ["2.1"]
Explanation
Step-by-step calculation:
The child's weight is 55 lb.
The medication dosage is 50,000 units/kg.
The available medication concentration is 600,000 units/mL.
Calculating the total dose in units:
Convert the child's weight to kg: 55 lb ÷ 2.2 lb/kg = 25 kg
Calculate the total dose: 25 kg × 50,000 units/kg = 1,250,000 units
Calculating the volume to administer:
Use the concentration of the medication: 1,250,000 units ÷ 600,000 units/mL = 2.0833 mL
Rounding the answer:2.0833 rounds to 2.1 mL
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