When a prescription's days' supply runs out, how does it affect the MME calculation?

• A. The number will drop out of the calculation
• B. It will be added to the calculation
• C. It will be multiplied by zero
• D. The calculation remains unchanged

Answer: (A)

MME is based on active exposure days from each prescription. When a prescription’s days’ supply runs out, there are no more days in the reporting period where that prescription contributes any dose—so it no longer adds any MME to the total. In other words, that prescription drops out of the calculation for the remainder of the period. It isn’t added, it isn’t multiplied by zero, and the overall calculation shouldn’t stay the same because the patient is no longer exposed to that prescription after its supply ends.