Difficulty: Medium
Average Score: 77%
Simulated
A nurse is preparing to administer lidocaine 50 mg IV bolus. Available is lidocaine 200 mg/mL. How many mL should the nurse administer per dose?
Correct answer
A
Rationale
The correct answer is A: 0.25 mL. To calculate the mL of lidocaine to administer, use the formula: Desired dose (50 mg) / Stock concentration (200 mg/mL) = Volume to administer (X mL). Substituting the values, 50 mg / 200 mg/mL = X. Solving for X, we get X = 0.25 mL. This calculation ensures precise dosing accuracy. Choices B, C, and D are incorrect as they do not align with the calculated result. It's crucial to follow the formula to prevent medication errors.