Nursing plays an important role in quality improvement through various activities. This includes collecting and monitoring data on quality measures, collaborating to implement quality improvement plans, and contributing nursing expertise. Quality improvement aims to continuously improve healthcare systems and outcomes based on best evidence and patient-centered care. Common methodologies used include Plan-Do-Study-Act cycles and Six Sigma approaches. Challenges to quality improvement include engaging all nurses, balancing resources and administrative burden, and ensuring proper preparation through education.