This review offers an analysis of practice overlap between physicians and registered nurses (RNs) who are not advanced practice nurses. Additionally, it spotlights opportunities for expanding traditional professional boundaries to establish novel care delivery models. The examples of RN role expansion offer a beginning for discussion regarding how the health professionals’ knowledge and skills can be best used in designing an effective and efficient health care system. Although limited data exist on cost effectiveness and workload implications of the novel care delivery models, policy makers can use the findings of this review to begin to inform U.S. health care reform.
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