Neuro-surgical nurses are specialized medical-surgical nurses that care for patients needing neurosurgery for problems involving their nervous system (the brain, spinal cord and peripheral nerves). The Certified Neuroscience Registered Nurse (CNRN) credential program is maintained by the American Board of Neuroscience Nursing (ABNN). Neurosurgical nurses must renew their CNRN certification every five years. The major professional organization for neurosurgical nursing is the American Association of Neuroscience Nurses (AANN), although neuro-surgical nurses may also consider joining the Academy of Medical-Surgical Nurses (AMSN), which is the major professional organization for adult medical-surgical nursing. The U.S. Bureau of Labor Statistics predicts excellent, overall job growth for registered nurses.