Difficulty: Medium
Average Score: 82%
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
B
Rationale
Volume (mL) = Desired dose (mg) / Concentration (mg/mL) = 35 mg / 75 mg/mL = 0.4 mL.