A Nursing school is a type of educational institution, or part thereof, where people undergo formal education and training to become a nurse. The nature of nursing education and nursing qualifications varies considerably across the world. In the United States, students graduate from nursing education programs qualified to take the national licensing exam for Licensed Practical Nurses (LPNs) or Registered Nurses (RNs).
(Referenced from Wikipedia: http://en.wikipedia.org/wiki/Nursing_school)

Some nurses choose to work in acute care settings: Emergency rooms (ER), operating rooms (OR), labor and delivery rooms, cardiac care units (CCU), and neonatal intensive care units. To read more about acute care nursing settings follow this link NICU.

School Nurse
The roles of school nurses are to facilitate positive student responses to normal human development; promote health and safety in the school environment; intervene with actual and potential health problems; provide case management services; and actively collaborate with others to build student and family capacity for adaptation, self-management, self-advocacy, and learning. This definition was adopted in the United States at the NASN Board of Directors meeting in Providence, Rhode Island in June 1999.

According to the American Federation of Teachers there are approximately 45,000 school nurses employed in the United States [1] School nurses are often the only health professional serving students in an educational setting.
(Referenced from Wikipedia: http://en.wikipedia.org/wiki/School_nurse)