A clinical nurse specialist (CNS) is a healthcare worker who can provide expert advice related to specific conditions or treatment pathways. Conventional nursing responsibilities, which focus on helping patients to prevent or resolve illness, a clinical nurse specialist’s scope of practice includes diagnosing and treating diseases, injuries and/or disabilities within their field of expertise. Clinical nurse specialists provide direct patient care, serve as expert consultants for nursing staffs and take an active role in improving health care delivery systems. Clinical nurse specialists often work in management positions and may also develop or work with a team to develop policies and procedures. Clinical nurse specialists may also work with research—translating research findings into patient care, evaluating research proposals, overseeing the design of evidence-based practice studies, applying research results to practice, or coming up with new evidence-based standards and protocols.