What does the abbreviation P.R.N indicate regarding medication?

The abbreviation P.R.N stands for "pro re nata," which is a Latin term meaning "as needed." This indicates that the medication should be taken only when necessary rather than at scheduled intervals. For example, a patient might take a pain reliever P.R.N if they experience discomfort, rather than taking it on a regular schedule throughout the day. This approach allows for flexibility in managing symptoms or conditions, ensuring that the medication is used when it provides the most benefit. Understanding this terminology is crucial for medical assistants and healthcare professionals in administering care appropriately and providing accurate instructions to patients.