Evidence-based practice (EBP) is the conscientious and judicious use of current best evidence in conjunction with clinical expertise and patient values to guide health care decisions.12–15 Best evidence includes empirical evidence from randomized controlled trials; evidence from other scientific methods such as descriptive and qualitative research; as well as use of information from case reports, scientific principles, and expert opinion. When enough research evidence is available, the practice should be guided by research evidence in conjunction with clinical expertise and patient values. In some cases, however, a sufficient research base may not be available, and health care decisionmaking is derived principally from nonresearch evidence sources such as expert opinion and scientific principles.16 As more research is done in a specific area, the research evidence must be incorporated into the EBP.