Difficulty: Medium
Average Score: 73%
Simulated
A nurse is preparing to administer acetaminophen 10 mg/kg/dose to a child who weighs 28 lb. The amount available is acetaminophen 120 mg/5 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
5.3
Rationale
The correct answer is 5.3 mL. To calculate this, first convert the child's weight from pounds to kilograms: 28 lb / 2.2 = 12.73 kg. Then, calculate the dosage: 10 mg/kg x 12.73 kg = 127.3 mg. Next, determine how many mL are needed: 127.3 mg ├À 120 mg/5 mL = 5.3 mL. Therefore, the nurse should administer 5.3 mL.
Choice A (3.5 mL) is incorrect because it does not match the calculated dosage of 5.3 mL. Choice B (7.6 mL) is incorrect as it is too high based on the calculation. Choice C (6.2 mL) is also incorrect for the same reason. Choice D (4.8 mL) is lower than the correct answer. Choice E, F, and G are not feasible options based on the calculation.
Choice A (3.5 mL) is incorrect because it does not match the calculated dosage of 5.3 mL. Choice B (7.6 mL) is incorrect as it is too high based on the calculation. Choice C (6.2 mL) is also incorrect for the same reason. Choice D (4.8 mL) is lower than the correct answer. Choice E, F, and G are not feasible options based on the calculation.