Difficulty: Medium
Average Score: 84%
Simulated
A nurse is preparing to administer meperidine 35 mg IM to a client every 6 hr PRN for pain. Available is meperidine injection 75 mg/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.)
Correct answer
A
Rationale
To calculate the mL needed for the dose, divide the prescribed dose (35 mg) by the concentration of the medication (75 mg/mL): 35 mg / 75 mg/mL = 0.4667 mL. Rounding to the nearest tenth gives 0.5 mL, which is the correct answer (A). This ensures the client receives the accurate prescribed dosage. Choices B, C, and D are incorrect because they do not reflect the accurate calculation based on the prescribed dose and medication concentration.