A nurse is preparing to administer quinine 25 mg/kg/day PO divided in equal doses every 8 hr to a school-age child who weighs 36 lb. Available is quinine 325 mg tablets. How many tablets 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 ["0.5"]
To calculate the dosage of quinine for the child, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 36 pounds, which is approximately 16.36 kilograms (36/2.2). Next, calculate the total daily dose of quinine using the child's weight in kilograms: 25 mg/kg/day * 16.36 kg = 409 mg/day. Since the dose is divided into equal doses every 8 hours, divide the total daily dose by 3 to get the per dose amount: 409 mg/day / 3 doses/day = approximately 136.33 mg/dose. Finally, to find out how many 325 mg tablets the nurse should administer per dose, divide the per dose amount by the strength of the tablet: 136.33 mg/dose / 325 mg/tablet = approximately 0.42. Rounding to the nearest whole number, the nurse should administer half a tablet per dose.
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Correct Answer is ["83"]
Explanation
To calculate the infusion rate for an IV, you would divide the total volume of IV fluid (1,000 mL) by the time in hours over which the infusion is to run (12 hr). This calculation gives you the rate in mL/hr. So, for 1,000 mL of sodium chloride to be infused over 12 hours, the calculation is 1,000 divided by 12, which equals approximately 83.33 mL/hr. When rounding to the nearest whole number, the IV pump should be set to deliver 83 mL/hr.
Correct Answer is ["2"]
Explanation
To calculate the dosage of haloperidol for the child, first determine the total daily dose by multiplying the child's weight by the prescribed amount per kilogram. For a child weighing 40 kg, this would be 0.15 mg/kg/day * 40 kg, which equals 6 mg/day. Since the medication is to be administered in divided doses every 8 hours, divide the total daily dose by the number of doses per day. There are 24 hours in a day, so with doses every 8 hours, that's 3 doses per day. Therefore, 6 mg/day divided by 3 doses per day equals 2 mg per dose.
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