Certified Registered Nurse Anesthetists (CRNA) administer anesthesia for every kind of surgery, ranging from basic to the most complex. Nurse Anesthesia (CRNA) schools prepare students to serve the anesthetic needs of all patients. CRNA programs are highly advanced and allow board certified graduates to enjoy significant autonomy. CRNA accreditation began in 1956 and is backed by the National Board on Certification and Recertification of Nurse Anesthetists (NBCRNA). Graduates must pass the certification exam and are required to pass recertification every other year.