Nursing is the nation's largest health care profession. In 2017, there were more than 4,015,250 registered nurses and 922,196 licensed practical nurses nationwide. Of all licensed RNs, 2.6 million or 84.8% are employed in nursing. Nurses comprise the largest single component of hospital staff, are the primary providers of hospital patient care, and deliver most of the nation's long-term care. The primary pathway to professional nursing, as compared to technical-level practice, is the four-year Bachelor of Science in nursing (BSN) degree. Registered nurses are prepared either through a BSN program; a three-year associate degree in nursing; or a three-year hospital training program, receiving a hospital diploma. All take the same state licensing exam. (The number of diploma programs has declined steadily—to less than 10 percent of all basic RN education programs—as nursing education has shifted from hospital-operated instruction into the college and university system.)
