A child weighing 52.5 pounds receives a prescription for asparaginase 4,780 IU IV. The vial is labeled, "Asparaginase 10,000 IU single-use vial. For IM use, reconstitute in 2 mL sterile sodium chloride, and for IV use, reconstitute in 5 mL". How many mL should the nurse administer?
(Enter the numeric value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["2.4"]
Step 1 is to identify the ordered dose and the correct available concentration based on the route of administration.
Ordered Dose: 4,780 IU
Route: IV (Intravenous)
Available Strength: 10,000 IU
Reconstitution Volume for IV: 5 mL
Step 2 is to calculate the volume to administer in milliliters (mL)
Volume = (Ordered Dose ÷ Available Dose) × Available Volume
Volume = (4,780 ÷ 10,000) × 5
4,780 ÷ 10,000 = 0.478
0.478 × 5 = 2.39
Volume to administer = 2.39 mL
Step 3 is to round to the nearest tenth
2.39 rounds to 2.4
Answer: 2.4
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1250"]
Explanation
A child weighing 25 kilograms is receiving ampicillin 300 mg/kg/24 hours intravenously in equally divided doses every 4 hours.
This means that the child is receiving a total of 7500 mg of ampicillin per day (300 mg/kg/day × 25 kg = 7500 mg/day).
Since there are 24 hours in a day and the doses are given every 4 hours, the child will receive a total of 6 doses per day (24 hours/day ÷ 4 hours/dose = 6 doses/day).
Therefore, for each dose, the nurse should administer 1250 mg of ampicillin (7500 mg/day ÷ 6 doses/day = 1250 mg/dose).
Correct Answer is ["0.25"]
Explanation
Let’s calculate step by step:
Convert weight to kilograms
55lb÷2.2=25kg
Determine dose in mg
0.01mg/kg×25kg=0.25mg
Available concentration
1mg/mL
Calculate volume to administer
0.25mg1mg/mL=0.25mL
Final Answer: 0.25
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