A nurse is preparing to administer phenytoin 5 mg/kg/day PO divided in equal doses every 12 hr to a school-age child who weighs 38 lb. Available is phenytoin 50 mg chewable tablets. How many tablets should the nurse administer per dose? (Round the answer to the nearest whole number. Us a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["1"]

To calculate the dosage of phenytoin for the child, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 38 lb, which is approximately 17.27 kg (38 lb / 2.2). Next, multiply the child's weight in kilograms by the dosage prescribed: 5 mg/kg/day. For this child, that would be 86.36 mg/day (17.27 kg * 5 mg/kg). Since the dose is divided every 12 hours, the amount per dose would be 43.18 mg (86.36 mg/day divided by 2). With phenytoin 50 mg chewable tablets available, the nurse would administer one tablet per dose.

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Correct Answer is ["2"]

Explanation

To calculate the volume of penicillin G benzathine injection required, divide the prescribed dose by the concentration available. In this case, 1,200,000 units prescribed divided by 600,000 units per mL results in 2 mL.

Correct Answer is ["1"]

Explanation

The conversion of milliliters to teaspoons is a common calculation in medical dosing. For the administration of 5 mL of digoxin elixir PO, the equivalent in teaspoons would be approximately 1.01442 teaspoons. When rounding to the nearest whole number, as per medical dosing guidelines which often require precise measurements to ensure safety, the amount would be 1 teaspoon. It's important to use a leading zero if it applies to indicate less than one, and not to use a trailing zero as it could be mistaken for a larger dose. Therefore, the nurse should recognize that 5 mL is equivalent to 1 teaspoon.

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["2"]

Explanation

A nurse is preparing to administer 5 mL of digoxin elixir PO to a toddler. The nurse should recognize that this is equivalent to how many tsp? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["1"]

Explanation

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.)

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.)

A nurse is preparing to administer furosemide 6 mg IM to a child. The amount available is furosemide 10 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.)

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