A nurse is preparing to administer amoxicillin and clavulanate 30 mg/kg/day PO divided in equal doses every 12 hr to an infant who weighs 16 lb. Available is amoxicillin and clavulanate suspension 125 mg/5 mL suspension. 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.)

Answer and Explanation

The Correct Answer is ["4.4"]

To calculate the dosage of amoxicillin and clavulanate for the infant, we first convert the weight from pounds to kilograms, knowing that 1 pound is approximately 0.453592 kilograms. The infant weighs 16 pounds, which is roughly 7.25748 kilograms. The prescribed dose is 30 mg/kg/day, so for the infant, it would be 30 mg/kg/day * 7.25748 kg = 217.7244 mg/day. Since the medication is to be administered every 12 hours, the daily dose should be divided into two, resulting in 217.7244 mg/day / 2 = 108.8622 mg per dose. With the medication available in a concentration of 125 mg/5 mL, we calculate the volume per dose as (108.8622 mg * 5 mL) / 125 mg = 4.354488 mL per dose. Rounding to the nearest tenth, the nurse should administer 4.4 mL per dose.

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Correct Answer is ["1.1"]

Explanation

To calculate the dosage of dimercaprol for the adolescent, first convert the weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The adolescent weighs 79 lb, which is approximately 35.91 kg (79 ÷ 2.2). The prescribed dose is 3 mg/kg, so the total dosage required is 107.73 mg (35.91 kg x 3 mg/kg). With the available dimercaprol injection of 100 mg/mL, the nurse should administer 1.1 mL (107.73 mg ÷ 100 mg/mL), rounding to the nearest tenth. Therefore, the nurse should administer 1.1 mL of dimercaprol injection.

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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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer dimercaprol 3 mg/kg IM to an adolescent who weighs 79 lb. Available is dimercaprol injection 100 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["1.1"]

Explanation

A nurse is administering prochlorperazine 0.13 mg/kg IM to a child who weighs 55 lb. Available is prochlorperazine injection 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.65"]

Explanation

A nurse is preparing to administer 7.5 mL of ampicillin 250 mg oral suspension to a toddler who has otitis media. The nurse should recognize that 7.5 mL is equivalent to how many tsp? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer hydrocortisone 7.5 mg PO to a child. The amount available is hydrocortisone 5 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer enoxaparin 20 mg subcutaneously to a school-age child. The amount available is enoxaparin 30 mg/0.3 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

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