Veterinary Technician Practice Exam

What is the meaning of "Prn" in pharmacy terminology?

1. Prescription needed

2. Periodic response needed

3. Refill as needed

4. Primary recommended name

The correct answer is: Refill as needed

"Prn" is a commonly used abbreviation in pharmacy and medical terminology that stands for the Latin phrase "pro re nata," which translates to "as needed." This indicates that a medication should be taken only when it is required, rather than on a scheduled or regular basis. This is particularly relevant for medications that are intended to alleviate symptoms that may not be constantly present, such as pain relievers or anti-anxiety medications. The emphasis on using the medication as needed allows for greater flexibility in treatment based on the patient’s condition at any given time. In contrast, the other options do not accurately reflect the meaning of "prn." For instance, "prescription needed" would imply that a medication cannot be obtained without a formal prescription, which is not what "prn" indicates. "Periodic response needed" suggests a necessary response at regular intervals, and "primary recommended name" does not relate to the use of medications at all. Therefore, "refill as needed" closely aligns with the “as needed” concept but does not capture the full intent expressed by "prn."