''As-Needed'' Range Orders for Opioid Analgesics in the Management of Pain: A Consensus Statement of the American Society for Pain Management Nursing and the American Pain Society.

Effective pain management requires careful titration of analgesics and evaluation of individual patient's responses to treatment using valid and reliable pain and pain relief assessment tools, and evidence-based patient monitoring for adverse treatment effects. A registered nurse, competent in pain assessment and analgesic administration, can safely interpret and implement properly written ''as-needed'' or ''PRN'' range orders for analgesic medications. The American Society for Pain Management Nursing (ASPMN) and the American Pain Society (APS) support safe medication practices and the appropriate use of PRN range orders for opioid analgesics in the management of pain.