NPs serve as health care resources, interdisciplinary consultants, and patient advocates. The autonomous nature of advanced clinical practice of NPs requires accountability for outcomes in health care.22 Ensuring the highest quality of care requires certification, periodic peer review, clinical outcome evaluations, a code for ethical practice, evidence of continuing professional development and maintenance of clinical skills. NPs are committed not only to seeking and sharing knowledge that will promote quality health care, but also to improving clinical outcomes by conducting research or applying the research findings of others.