What does prn indicate in medication orders?

What does prn indicate in medication orders?

• A. As much as desired
• B. As needed
• C. Everyday
• D. Twice daily

Answer: (B)

PRN means pro re nata, Latin for “as needed.” It indicates you give the medication only when the animal shows the symptom or condition it’s meant to treat, not on a fixed schedule. For example, a pain med with PRN instructions would be given when the animal appears painful, rather than every X hours regardless of pain. There’s usually a limit on how often or how much you can give per day, and you assess the animal’s response after each dose. This differs from fixed schedules like daily or twice daily, which are given at set times regardless of symptoms. It also isn’t “as much as desired,” which isn’t a proper dosing instruction.

PRN means pro re nata, Latin for “as needed.” It indicates you give the medication only when the animal shows the symptom or condition it’s meant to treat, not on a fixed schedule. For example, a pain med with PRN instructions would be given when the animal appears painful, rather than every X hours regardless of pain. There’s usually a limit on how often or how much you can give per day, and you assess the animal’s response after each dose. This differs from fixed schedules like daily or twice daily, which are given at set times regardless of symptoms. It also isn’t “as much as desired,” which isn’t a proper dosing instruction.