What does PRN stand for in medical terminology?

In medical terminology, PRN stands for "as needed." This abbreviation originates from the Latin phrase "pro re nata," which conveys the idea that a medication or treatment is to be administered only when required, rather than on a scheduled basis. PRN orders are common in medical practice, allowing healthcare providers to respond to a patient's specific needs at various times, such as taking pain relief medication when experiencing pain rather than taking it at regular intervals regardless of discomfort.

Understanding the meaning of PRN is particularly important in settings like radiology, where certain medications may need to be given based on patient responses or symptoms, ensuring optimal patient care and comfort during procedures.