Pharmacy Technician Certification Exam Practice Question

Correct Answer: B

Rationale: To determine the required volume of the drug, divide the ordered dose by the concentration. The ordered dose is 40 mg, and the concentration is 25 mg/mL.

Calculating this gives:
40 mg ÷ 25 mg/mL = 1.6 mL.

Option A (0.625 mL) is incorrect as it represents a smaller volume than needed for the dose. Option C (6.25 mL) exceeds the required amount, indicating a miscalculation. Option D (16 mL) is also incorrect, as it is far greater than necessary, likely resulting from a misunderstanding of the concentration. Thus, 1.6 mL is the accurate volume needed for the prescribed dose.