NURS FPX 4065 Assessment 5 centers on the role of the professional nurse as a leader NURS FPX 4065 Assessment 5, advocate, and change agent within the health care system. As health care environments become more complex, nurses are expected to move beyond bedside care and actively participate in shaping policies, improving systems, and promoting quality and safety at organizational and population levels. This assessment emphasizes how leadership, advocacy, and evidence-based practice enable nurses to influence health outcomes and drive meaningful improvements in care delivery.