1. What are the four main categories of nursing roles according to the American Nurses Association (ANA)? Answer: The four main categories are direct care, management, education, and research. 2. What is the difference between a registered nurse (RN) and a licensed practical nurse (LPN)? Answer: An RN has completed a bachelor's degree or an associate degree in nursing and has passed a national licensing exam. An LPN has completed a one-year diploma or certificate program and has passed a state licensing exam. RNs have more autonomy, responsibility, and scope of practice than LPNs. 3. What are some examples of advanced practice registered nurses (APRNs)? Answer: Some examples are nurse practitioners, clinical nurse specialists, nurse anesthetists, and nurse midwives. APRNs have completed a master's degree or a doctoral degree in nursing and have additional certification and training in a specific area of practice. 4. What are some of the roles and responsibilities of a nurse manager? Answer: A nurse manager is responsible for overseeing the daily operations of a nursing unit or department, such as staffing, budgeting, quality improvement, patient safety, and staff development. 5. What are some of the roles and responsibilities of a nurse educator? Answer: A nurse educator is responsible for designing, implementing, and evaluating educational programs for nursing students, staff nurses, or the public. They may teach in academic settings, clinical settings, or community settings.