A nurse anesthesiologist is an advanced practice registered nurse who administers anesthesia, monitors patients during surgery, and manages their recovery afterward. The official credential is Certified Registered Nurse Anesthetist (CRNA), and the term “nurse anesthesiologist” was formally recognized as a synonymous title by the profession’s national association in 2019. These professionals provide anesthesia for every type of surgical procedure, to patients of all ages, and they represent one of the highest-paid nursing specialties in the United States, with a median salary of $223,210 as of May 2024.
What a Nurse Anesthesiologist Does
The core of the job is keeping patients safe and pain-free before, during, and after surgery. That starts with a pre-operative assessment: reviewing your medical history, identifying risks like drug allergies or conditions such as asthma and diabetes, and explaining what to expect from anesthesia. During a procedure, the CRNA calculates and delivers precise dosages, continuously monitors your vital signs, and adjusts care in real time based on how your body responds. Afterward, they oversee your recovery as the anesthesia wears off.
CRNAs work alongside surgeons, physician anesthesiologists, dentists, and podiatrists. You might encounter one in a hospital operating room, an outpatient surgery center, a labor and delivery unit, an emergency room, a post-anesthesia recovery room, or even a dentist’s office. They also serve in military medicine, where they provide trauma stabilization and anesthesia in remote, resource-limited settings. Mayo Clinic in Arizona, for example, has trained over 1,200 military learners in tactical medicine courses with CRNA faculty.
Education and Training Requirements
Becoming a nurse anesthesiologist requires years of education layered on top of real-world critical care experience. The path starts with earning a bachelor’s degree in nursing (or a related field) and working as a registered nurse. You then need a minimum of one year of full-time experience in a critical care setting, such as an intensive care unit, where you develop the skills to manage unstable, critically ill patients.
From there, candidates enter an accredited nurse anesthesia graduate program that runs approximately 36 months. Since 2025, all new graduates must hold a doctoral degree. By the time they finish, graduates have logged an average of 9,432 hours of clinical experience. After completing the program, they must pass a national certification exam administered by the NBCRNA (National Board of Certification and Recertification of Nurse Anesthetists) and then renew their credential every four years through a continuing education process that includes coursework and a midpoint check-in to verify active licensure and practice.
How Training Compares to Physician Anesthesiologists
The distinction that generates the most confusion (and debate) is between a nurse anesthesiologist and a physician anesthesiologist. Both provide anesthesia, but their training paths are substantially different. A physician anesthesiologist completes four years of medical school followed by four years of residency, and often an additional one to two years of fellowship in a subspecialty. That adds up to eight to ten years of post-graduate education and between 12,000 and 16,000 patient care hours.
A nurse anesthesiologist’s clinical training totals roughly 2,500 hands-on anesthesia hours during their graduate program, though this sits on top of their prior nursing experience. CRNAs do not attend medical school or complete a medical residency. Despite these differences, a systematic review published in the British Journal of Anaesthesia found no consistent, high-level evidence of significant differences in safety between the two provider types. In one large dataset covering over 260,000 surgical cases, researchers found no significant differences in risk-adjusted mortality rates based on whether anesthesia was delivered by a CRNA or a physician anesthesiologist.
The Title: “Nurse Anesthetist” vs. “Nurse Anesthesiologist”
If you’ve seen both terms and wondered whether they refer to different roles, they don’t. The professional association that represents CRNAs voted in 2019 to recognize “nurse anesthesiologist” as a descriptor synonymous with “nurse anesthetist.” In 2021, the organization rebranded itself from the American Association of Nurse Anesthetists to the American Association of Nurse Anesthesiology, updating its official documents and web presence to reflect the change. The shift was intended to better describe the expertise CRNAs bring as specialists in the science of anesthesiology.
The move was not without controversy. Physician organizations, including the American Medical Association, have pushed back, arguing the term “anesthesiologist” should be reserved for physicians. The AANA, for its part, now uses “physician anesthesiologist” when referring to MDs or DOs who specialize in anesthesia, drawing a clear line between the two roles. Regardless of professional politics, the legal title a CRNA can use varies by state, and individual practitioners are expected to comply with whatever their state law and facility policies require.
Where Nurse Anesthesiologists Practice
CRNAs work in virtually every setting where anesthesia is needed. Hospital operating rooms and outpatient surgery centers are the most common, but they also staff emergency departments, pain management clinics, and obstetric units. In rural areas, CRNAs are often the sole anesthesia provider, making them essential to surgical access in communities that don’t have physician anesthesiologists on staff.
Practice independence varies by location. Twenty-five states and Guam have opted out of a federal rule that otherwise requires physician supervision of CRNAs in facilities that receive Medicare funding. In those opt-out states, CRNAs can practice independently without a supervising physician, a model that has expanded access to surgical and obstetric care in underserved areas.
Salary and Job Outlook
Nurse anesthesiologists are among the highest-earning nurses in the country. The Bureau of Labor Statistics reports a median annual wage of $223,210 for nurse anesthetists as of May 2024. Employment for CRNAs specifically is projected to grow 9 percent from 2024 to 2034, driven by an aging population that needs more surgical procedures and continued demand for anesthesia providers in rural and outpatient settings. The broader category of advanced practice registered nurses, which includes nurse practitioners and nurse midwives alongside CRNAs, is projected to grow 35 percent over the same period.