What does "prn" mean in medication administration?

The term "prn" stands for "pro re nata," which is a Latin phrase meaning "as needed." In the context of medication administration, this indicates that the medication can be given based on specific circumstances or criteria that arise, rather than on a fixed schedule. For example, a patient may be prescribed a pain reliever to be taken prn, meaning they can take it when they experience pain rather than at set intervals throughout the day.

This approach allows for more flexibility in treatment and ensures that medications are used effectively and only when necessary, tailored to the individual's immediate needs. Understanding this term is crucial for properly administering medications and making decisions in patient care regarding when it is appropriate to give a medication.