Many publications contain definitions of evidence-based practice, evidence-based medicine, and evidence-based nursing. Below are a few favorites:
WHAT DO ALL THESE DEFINITIONS HAVE IN COMMON?
THE INTEGRATION OF CLINICAL EXPERTISE;
CRITICAL EVALUATION OF THE RESEARCH LITERATURE;
AND PATIENT PREFERENCES AND VALUES
IN ORDER TO PROVIDE PATIENTS THE BEST POSSIBLE CARE.
IS A PROCESS CONTAINING FIVE STEPS.
The most important reason for practicing evidence-based healthcare is to improve quality of care through the identification and promotion of practices that work, and the elimination of those that are ineffective or harmful. (Gray GE, Pinson LA. Evidence-based medicine and psychiatric practice. Psychiatr Q. 2003:74(4):387-99. DOI: 10.1136/bmj.312.7023.71.)
Evidence-based practice is thought to lead to:
the highest quality of care
the best patient outcomes
reduced healthcare costs and geographic variation in the delivery of care
greater empowerment of clinicians
greater clinician satisfaction and lower turnover rate in certain healthcare professions
(Melnyk, BM: 7.)