Clinical Nurse Specialist (Advanced Practical Nurse)
Clinical nurse specialists (CNSs) or advanced practice nurses (APNs) are Registered Nurses with advanced education, knowledge, skills, and scope of practice. Most CNSs possess a master's or doctoral degree in nursing and may also sit for additional certification examinations. They perform primary health care, provide mental health services, diagnose, prescribe, carry out nursing research, and educate the public and other professionals.