11. 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?
Answer: C
The days supply reported on the prescription claim form would be 29 days.
To determine the days supply, we need to calculate the total units of insulin the patient will use in a day and then find out how many days the vial will last. The patient requires 17 units twice a day, totaling 34 units per day. With a 10 mL vial of NPH U-100 insulin containing 1000 units, the vial will last for 29 days.
A) 6
This option is incorrect. If the patient were to use 34 units per day, a 10 mL vial containing 1000 units would not only last 6 days but rather a much longer duration. Thus, this figure does not reflect the correct calculation based on the patient's dosage.
B) 15
This option is also incorrect. Calculating the days supply based on 15 days would imply a much lower daily consumption than what is required. Given the patient's need for 34 units a day, this amount does not align with the total supply of insulin in the vial.
C) 29
This option is correct. The total units used by the patient per day is 34, and with a 10 mL vial containing 1000 units, the calculation shows that the vial will last approximately 29 days (1000 units ÷ 34 units/day = 29.41 days, rounded down to 29 days for prescription purposes).
D) 59
This option is incorrect. A supply of 59 days would imply that the patient is using far fewer units per day than they actually require. Given the daily consumption of 34 units, this option does not reflect the correct duration for which the insulin vial will last.
Conclusion
The correct answer of 29 days is based on a straightforward calculation of the total units the patient requires daily and the total units available in the vial. All other options fail to accurately represent the days supply due to miscalculations regarding the patient's dosage needs.