Pharmacy Technician Certification Exam Practice Question
If a 10 mL vial of NPH U-100 insulin is dispensed to a patient who requires 17 units b.i.d., what would be the days supply reported on the prescription claim form? ΠCaiculator Σ
Correct Answer: C
Rationale: To determine the days supply, first calculate the total daily insulin requirement. A patient requiring 17 units b.i.d. (twice daily) needs 34 units per day.
Next, calculate the total units in a 10 mL vial of NPH U-100 insulin. Since U-100 means 100 units per mL, a 10 mL vial contains 1,000 units (10 mL x 100 units/mL).
Now, divide the total units by the daily requirement: 1,000 units ÷ 34 units/day ≈ 29.4 days. This rounds down to 29 days, which is the days supply reported.
- Option A (6 days) miscalculates the total units available.
- Option B (15 days) underestimates the daily requirement.
- Option D (59 days) overestimates the supply by not considering the correct daily dosage.
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