A nurse is preparing to administer magnesium hydroxide 0.85 g PO to a school-age child. How many mg should the nurse administer? (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 ["850"]
Magnesium hydroxide is measured in grams (g) and milligrams (mg). There are 1000 milligrams in 1 gram. Therefore, to convert 0.85 g to mg, we multiply 0.85 by 1000. This gives us 850 mg. The answer is rounded to the nearest whole number as instructed.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["850"]
Explanation
Magnesium hydroxide is measured in grams (g) and milligrams (mg). There are 1000 milligrams in 1 gram. Therefore, to convert 0.85 g to mg, we multiply 0.85 by 1000. This gives us 850 mg. The answer is rounded to the nearest whole number as instructed.
Correct Answer is ["30"]
Explanation
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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