A certified registered nurse anesthetist (CRNA) delivers anesthesia care to patients before, during, and after surgical and diagnostic procedures. They are one of only a few types of providers qualified to administer anesthesia in the United States, and they handle everything from putting a patient to sleep for major surgery to managing pain relief during labor. With a median annual salary of $223,210 according to the Bureau of Labor Statistics, CRNAs are among the highest-paid nursing professionals in the country.
What CRNAs Do Before Surgery
Anesthesia care starts well before anyone enters an operating room. A CRNA’s preoperative work centers on evaluating whether a patient is safe to undergo anesthesia and building a plan tailored to that person’s health profile. This includes reviewing the patient’s full medical history: past surgeries, current medications, drug allergies, tobacco and alcohol use, family history of anesthesia reactions, and any problems with previous anesthetics.
The physical assessment focuses on the areas most relevant to anesthesia safety. At minimum, a CRNA evaluates the patient’s airway (looking for anything that could make intubation difficult), listens to the heart and lungs, and records vital signs. Lab tests aren’t ordered routinely for every patient. Instead, they’re guided by what the history and physical exam reveal, the patient’s age, and the complexity of the planned procedure. A healthy 25-year-old having a minor outpatient procedure needs far less workup than a 70-year-old with heart disease facing abdominal surgery.
CRNAs also spend time during this phase explaining to patients what to expect: how the anesthesia will be given, what they’ll feel, and how the recovery process works. This preoperative teaching helps reduce anxiety and gives patients a chance to ask questions or raise concerns about their care.
Anesthesia During the Procedure
Once in the operating room, the CRNA selects and administers the appropriate anesthesia technique. This falls into three broad categories:
- General anesthesia renders the patient completely unconscious and is used for major surgeries where the patient needs to be still and pain-free throughout.
- Regional anesthesia numbs a specific area of the body. Spinal and epidural blocks (commonly used during childbirth or lower-body surgeries) and peripheral nerve blocks all fall into this category.
- Sedation keeps the patient relaxed and drowsy but not fully unconscious, often used for shorter or less invasive procedures like colonoscopies or dental work.
Throughout the procedure, the CRNA continuously monitors the patient’s biological functions: heart rate, blood pressure, oxygen levels, breathing, body temperature, and how deeply the patient is sedated. Anesthesia isn’t a set-it-and-forget-it process. The CRNA adjusts medications in real time based on what the monitors show, how the surgery is progressing, and how the patient’s body is responding. If a patient’s blood pressure drops or their heart rhythm changes, the CRNA intervenes immediately.
Recovery and Postoperative Care
A CRNA’s job doesn’t end when the surgery does. They manage the process of bringing a patient out of anesthesia, which requires careful timing and monitoring to avoid complications like nausea, airway obstruction, or dangerous swings in blood pressure. In the recovery room, standardized scoring systems help evaluate whether a patient is ready to move to the next stage of care. These tools assess things like consciousness, breathing ability, circulation, and pain levels rather than simply waiting a fixed amount of time.
For outpatient procedures, the evaluation is even more detailed because the patient needs to be safe enough to go home. The CRNA or recovery team checks that the patient can breathe independently, that pain and nausea are controlled, and that vital signs are stable before clearing them for discharge.
Where CRNAs Work
Most people associate CRNAs with hospital operating rooms, and that is the most common setting. But CRNAs practice in a wide range of environments. They work in outpatient surgery centers, labor and delivery units, pain management clinics, dental offices, and emergency departments. CRNAs are especially critical in rural and underserved areas where physician anesthesiologists may not be available. They also serve in all branches of the U.S. military, providing anesthesia in field hospitals and combat settings where they often function as the sole anesthesia provider.
How CRNAs Fit Into the Care Team
CRNAs practice under two main models. In the anesthesia care team model, a physician anesthesiologist leads the anesthesia plan and oversees the CRNA who delivers hands-on care. The anesthesiologist may be responsible for the initial evaluation, delegating specific tasks, and stepping in during critical moments or emergencies. Most anesthesia care in the U.S. currently follows this team-based structure.
In the independent practice model, CRNAs work without physician anesthesiologist oversight. Whether a CRNA can practice independently depends on state law. Some states grant full practice authority, allowing CRNAs to evaluate patients, choose anesthetic techniques, and manage the entire anesthesia process on their own. This model is particularly common in rural hospitals and smaller surgical centers. In some settings, a non-anesthesiologist physician (like the surgeon) may supervise the CRNA, though this arrangement is distinct from the formal anesthesia care team model.
Education and Training Required
Becoming a CRNA requires more education than almost any other nursing specialty. The path starts with earning a bachelor’s degree in nursing and becoming a registered nurse. Most CRNA programs require at least one year of critical care experience, typically in an intensive care unit, where nurses develop skills in managing ventilators, vasoactive medications, and unstable patients.
CRNA programs themselves are rigorous, typically lasting three to four years. As of January 2025, all graduates of nurse anesthesia programs must hold a doctoral degree, either a Doctor of Nursing Practice (DNP) or a Doctor of Nurse Anesthesia Practice (DNAP). This transition was set in motion back in 2009 by the Council on Accreditation of Nurse Anesthesia Educational Programs, which stopped accrediting new master’s-level programs after 2015 and required all students entering programs from January 2022 onward to graduate at the doctoral level. After completing the program, graduates must pass a national certification exam to earn the CRNA credential.
Salary and Job Outlook
CRNAs are compensated significantly more than other advanced practice nurses. The median annual wage for nurse anesthetists was $223,210 in May 2024, compared to $129,210 for nurse practitioners and $128,790 for nurse midwives. That gap reflects the intensity of the training, the high-stakes nature of the work, and the level of autonomy CRNAs carry in clinical settings.
Demand for CRNAs remains strong. An aging population needing more surgical procedures, growth in outpatient surgery centers, and the ongoing need for anesthesia providers in rural communities all contribute to a favorable job market. The combination of job security, high compensation, and clinical independence makes it one of the most competitive advanced practice nursing careers to enter.