Difficulty: Medium
Average Score: 73%
Simulated
A nurse is preparing to administer metoprolol 5 mg IV bolus to a client for heart rate control. Available is metoprolol injection 1 mg/mL. How many mL should the nurse administer per dose?
Correct answer
B
Rationale
The correct answer is B: 5 mL. To calculate the mL needed for a 5 mg dose of metoprolol, divide the desired dose (5 mg) by the concentration of the medication (1 mg/mL). 5 mg / 1 mg/mL = 5 mL. This ensures the nurse administers the correct dose. Choices A, C, and D are incorrect because they do not accurately calculate the mL needed for a 5 mg dose of metoprolol.