A nurse is reviewing a new prescription for dexamethasone 0.2 mg/kg/day PO in two divided doses for a child who weighs 66 lb. The amount available is dexamethasone 0.5 mg/5 mL elixir. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["30"]
To calculate this, first convert the child's weight from pounds to kilograms: 66 lb * (1 kg / 2.2 lb) = 30 kg. Then, calculate the total daily dose of dexamethasone in mg: 0.2 mg/kg/day * 30 kg/day = 6 mg/day.
Since the daily dose is divided into two doses, calculate the dose per administration: 6 mg/day / 2 doses/day = 3 mg/dose.
Finally, divide the dose in mg by the concentration of the dexamethasone elixir to find the volume to administer: 3 mg / (0.5 mg/5 mL) = 30 mL/dose.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["133"]
Explanation
To calculate this, divide the volume of the infusion by the infusion time to find the rate: 800 mL / 6 hr =
133.33 mL/hr, which rounds to 133 mL/hr when rounded to the nearest whole number.
Correct Answer is ["1"]
Explanation
To find out how many tablespoons of magnesium hydroxide the nurse should administer, we need to convert the volume from mL to tablespoons.
There are approximately 14.7868 mL in 1 tablespoon.
Therefore, to convert 15 mL to tablespoons, we divide 15 by 14.7868.
This gives us approximately 1.014 tablespoons. The answer is rounded to the nearest whole number as instructed.
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