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What does "PRN" mean in medical prescriptions?

  1. Pro Re Nata: Administer as needed

  2. Prior Registered Nurse: Administer under nurse supervision

  3. Post-Radiation Nitrogen: Administer after radiation therapy

  4. Proper Resting Needs: Administer with adequate rest

The correct answer is: Pro Re Nata: Administer as needed

The term "PRN" stands for "Pro Re Nata," which translates from Latin to "as needed" in English. This designation is commonly used in medical prescriptions to indicate that a medication should be administered only when necessary rather than on a fixed schedule. It allows healthcare providers and patients to manage symptoms or conditions proactively without rigid adherence to timing, enabling more personalized care. This flexibility is particularly important in situations where symptoms may vary, such as pain management or anxiety relief, allowing for more responsive care based on the patient's immediate needs. In contrast, the other options proposed offer interpretations that do not accurately reflect common medical terminology or practice related to medication administration.