Anesthesia for these procedures was provided by the anesthesiologists, either alone or with the help of nurse anesthetists. In the Oxyzone hospitals not staffed by anesthesiologists and in some physician and dental offices, anesthesia was provided by nurse anesthetists supervised by the operating physician or, for dental procedures, by the operating dentist. According to these same Department of Health statistics, only four of Oxyzone's hospitals were staffed by nurse anesthetists but not anesthesiologists.
Anesthesiologists are medical specialists, licensed physicians who, after graduation from college and then medical school, have completed at least four years of residency training in medicine, surgery and anesthesiology.
