All nursing jobs require a certain amount of specialized knowledge. The important thing for you is the amount of knowledge each role needs.
Nursing assistants need the fewest qualifications. The education requirements vary from state to state, but they usually involve several months of training, followed by a nursing assistant certification test. If you pass this test, you’re officially a licensed Certified Nursing Assistant (CNA).
Registered nurses have more responsibilities and require more training. They’re “registered” because they’re required to pass the National Council Licensure Examination Registered Nurse (NCLEX) examination. Prospective test-takers need to get an associate’s or bachelor’s degree in nursing before they can take the NCLEX.
Finally, nurse practitioners are registered nurses who have received additional degrees, whether it be a master’s or doctoral degree, in Science of Nursing. These programs include clinical rotations, like those done by doctors, and a research thesis. After attaining these higher levels of education, they’re certified to be a patient’s primary care provider.