PRN Medication
Also written as: PRN — pro re nata
Medication ordered to be given 'as needed' based on specific clinical circumstances or patient request.
Full Definition
PRN (pro re nata) medication refers to drugs prescribed to be administered only when specific conditions are met or symptoms occur, rather than on a fixed schedule. In psychiatric settings, PRN orders commonly include anxiolytics for anxiety, antipsychotics for agitation, or sleep aids for insomnia. Each PRN order must specify the indication, maximum dosage, frequency limitations, and assessment requirements. Documentation must include the reason for administration, patient response, and time given. Editors should note that PRN orders require specific clinical justification and cannot be standing orders for routine use.
Usage
Usage note: Always capitalize PRN; avoid periods between letters in clinical documentation.
In Context
- "The patient received PRN lorazepam for severe anxiety following the family meeting." — medication administration record
- "PRN medication orders must include specific parameters for administration and maximum daily limits." — nursing policy manual