A nurse is preparing to administer amantadine 150 mg PO every 12 hr. Available is amantadine 50 mg/5 mL syrup. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

To calculate the mL per dose, we need to first determine the total dose required per dose. The total dose is 150 mg and since the syrup is 50 mg/5mL, we can set up a proportion: 150 mg/x mL = 50 mg/5 mL. Solving for x gives x = 15 mL. Therefore, the nurse should administer 15 mL per dose. Other choices are incorrect because they do not accurately calculate the mL per dose based on the given information. Choice B, 10 mL, would be too low, choice C, 12 mL, would also be too low, and choice D, 18 mL, would be too high based on the calculation. Choice A is the correct answer as it accurately calculates the mL per dose required.