A nurse is preparing to administer prednisolone 2 mg/kg/day PO divided in equal doses every 12 hr to a toddler who has acute asthma and weigh 26 lb. Available is prednisolone syrup 15 mg/5 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["3.9"]
To calculate the dosage of prednisolone syrup for the toddler, first convert the weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The toddler weighs 26 pounds, which is approximately 11.82 kilograms (26 / 2.2). The prescribed dose is 2 mg/kg/day, so the total daily dose is 23.64 mg (11.82 kg * 2 mg). This total daily dose should be divided into two equal doses to be given every 12 hours, resulting in 11.82 mg per dose. With the prednisolone syrup concentration of 15 mg/5 mL, use the formula: (desired dose * volume of one dose) / concentration of the drug to find the volume of syrup per dose. Therefore, the volume for each dose is (11.82 mg * 5 mL) / 15 mg, which equals 3.94 mL. After rounding to the nearest tenth, the nurse should administer 3.9 mL per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["10"]
Explanation
To administer the correct dose of methylphenidate, which is 10 mg, when the available oral solution concentration is 5 mg per teaspoon, the nurse needs to calculate the volume to administer. One teaspoon is equivalent to 5 milliliters (mL). Since the desired dose is 10 mg, and the available solution has a concentration of 5 mg per teaspoon, the nurse would need two teaspoons to make up the 10 mg dose. Therefore, the nurse should administer 10 mL of the methylphenidate oral solution.
Correct Answer is ["0.65"]
Explanation
To calculate the dosage of prochlorperazine that the nurse should administer, we first convert the child's weight from pounds to kilograms, knowing that 1 kilogram is approximately 2.2 pounds. The child weighs 55 pounds, which is equivalent to 55 / 2.2 = 25 kilograms (rounded to the nearest whole number for simplicity). Next, we multiply the child's weight in kilograms by the dosage prescribed, which is 0.13 mg/kg. So, 25 kg * 0.13 mg/kg = 3.25 mg. Finally, since the available medication is 5 mg/mL, we divide the total milligrams needed by the concentration, resulting in 3.25 mg / 5 mg/mL = 0.65 mL. Therefore, the nurse should administer 0.65 mL, rounded to the nearest hundredth.
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