CRNA school is hard. It is a full-time doctorate of at least three years, with dense science, 2,000+ clinical hours and a board exam at the end.
Most students who start do finish. In Everything CRNA's School Finder data (October 2026), the median program loses about 2% of a class, although a few programs lose far more.
Why CRNA school is demanding
The pace of the classroom
The COA requires at least 3 years of full-time study. Most programs are 36 months, and some run up to 51.
Courses cover advanced physiology, pathophysiology, pharmacology, chemistry and physics as they apply to anesthesia. They build on each other quickly, so falling behind in one term affects the next. See how long CRNA school is and the difference between front-loaded and integrated programs.
The clinical load
The COA sets a minimum of 2,000 clinical hours. Students who graduated in 2025 logged a median of 2,692 clinical hours, according to the NBCRNA.
Clinical days often start early and include call shifts on nights and weekends. The COA allows 24-hour call assignments but caps direct patient care at 16 continuous hours. Read CRNA clinical rotations for what this looks like.
Little room for outside work
Many programs discourage or limit outside jobs. Rocky Vista University calls employment of any kind "highly discouraged." Clarkson College requires written approval. It also bans work in the 16 hours before class or clinical.
Both programs also bar students from working as a nurse anesthetist by title or function while enrolled. Plan your finances as if you will not work. See paying for CRNA school.
The stakes
You are learning to care for patients under anesthesia, and mistakes matter. Your clinical performance is evaluated throughout the program, on top of classroom exams.
Attrition: how many students drop out
Attrition is the share of a class that does not finish, for any reason. Here is what programs report in our data:
| Measure | Value |
|---|---|
| Programs reporting attrition | 125 of 154 |
| Median attrition | 2.0% |
| Range | 0% to 21.6% |
So at a typical program, nearly everyone finishes. At the high end, about one in five students leaves. Students leave for academic, clinical, personal and financial reasons, and programs do not always say which.
Ask every program for its attrition rate for the last three classes, and what support it offers students who struggle.
Board exam pass rates
After graduating, you must pass the National Certification Examination (NCE). In 2025, 90.5% of first-time takers passed (2,980 of 3,294). The five-year average for 2021 to 2025 was 86.6%.
Repeat takers passed at 62.3% in 2025. Program pass rates also vary. In our data, the median program reports 91.7%, with a range of 60% to 100%.
Read the NCE exam and the SEE exam for how testing works. Compare programs on highest NCE pass rates.
Who tends to do well
There is no single profile. A few things help:
- Strong, recent science grades. Programs look at science GPA for a reason.
- Solid ICU experience. Comfort with drips, ventilators and unstable patients makes the clinical jump smaller.
- A realistic plan for money, family and time. These pressures add to the academic load.
- Shadowing. Seeing the role first helps you know what you are signing up for.
How students cope
Practical habits that help:
- Treat it like a full-time job, plus overtime. Block study time every day.
- Study in a small group. Explaining a concept out loud shows you what you do not know.
- Review the NCE content outline early. It shows how the material fits together.
- Protect sleep and exercise. Both affect how well you learn and perform.
- Ask for help early. Problems are easier to fix when faculty know about them soon.
- Talk about stress. Use your program's counseling services and peer support.
The AANA offers health and wellness resources for students and CRNAs. If you are in crisis, call or text 988 in the US to reach the 988 Suicide and Crisis Lifeline.
Is it harder than medical school?
They are different paths and hard to compare. CRNA school is shorter than medical school plus residency, but it is compressed and requires ICU experience first. See CRNA vs anesthesiologist assistant for a related comparison.
FAQ
What is the hardest part of CRNA school?
It varies by student. The pace of pharmacology and physiology, the first months of clinical, and balancing study with life are all common challenges.
Can you work during CRNA school?
Usually very little, if at all. Many programs discourage it, and some require written approval.
What GPA do you need to keep in CRNA school?
Programs set their own academic standards, often a minimum grade in each course. Check the student handbook before you accept a seat.
Do most students pass the boards?
Yes. In 2025, 90.5% of first-time NCE takers passed.
Sources
- COA Standards for Accreditation of Nurse Anesthesia Programs, Practice Doctorate (revised May 2025, effective January 2026)
- NBCRNA Annual NCE and SEE Report, Calendar Year 2025
- NBCRNA: NCE and SEE content outline
- Rocky Vista University Student Handbook: Employment During Enrollment
- Clarkson College Nurse Anesthesia Policy S2: Student Employment
- AANA: Health and wellness
- 988 Suicide and Crisis Lifeline
- AANA: Become a CRNA
- Everything CRNA School Finder data (October 2026), compiled from program websites and admissions-office correspondence