Final answer:
The days supply refers to the number of days a medication will last a patient. An emergency refill is when a patient needs their prescription filled urgently. It is important to use emergency refills only when necessary.
Step-by-step explanation:
In the context of healthcare, the term "days supply" refers to the number of days that a given medication or medical supply will last for a patient. An emergency refill, in this case, means that a patient needs their prescription filled urgently due to unforeseen circumstances.
For example, if a patient typically takes a medication twice a day and they have a prescription for a 30-day supply, the days supply would be 15. This means that the medication would last for 15 days.
It is important to note that emergency refills should typically be used only when there is a genuine need and not as a regular practice.