Anesthesiology Cheat Sheet 2026: One-Page Review of Must-Know Facts

Exam Snapshot: The Core Numbers

Before you touch a single practice question, memorize the shape of the exam itself. The American Osteopathic Board of Anesthesiology (AOBA) administers the General Anesthesiology Primary Written Examination as the first formal checkpoint on the path to full certification - separate from the later oral and clinical examinations. This cheat sheet is built for candidates preparing specifically for that written exam, not for other credentials that happen to share a similar name.

Format and Timing at a Glance

The written exam is delivered as four 90-minute sections of approximately 80 multiple-choice questions each, for a total of 320 questions. Three 10-minute breaks separate the sections, bringing your total seat time to roughly 6 hours 30 minutes even though actual testing time is 6 hours. That pacing math matters: at 80 questions in 90 minutes, you have a little over a minute per question, which leaves almost no room for lingering on any single item.

• Plan your break usage in advance - three 10-minute breaks are built into the schedule, so don't skip them to "save time."
• Practice full 90-minute blocks, not just isolated question sets, so your stamina matches section length.
• Because each section is timed independently, a slow start in Section 1 can't be recovered by rushing later sections.

For a deeper walkthrough of how difficulty is distributed across the exam day, see How Hard Is the Anesthesiology Exam? Complete Difficulty Guide 2026.

Domain Weightings You Must Memorize

The written exam blueprint is organized into four official domains that total 100% of the exam. Knowing these weights tells you exactly where to spend your limited study hours.

For the full breakdown of subtopics and sample question styles within each domain, review Anesthesiology Exam Domains 2026: Complete Guide to All 4 Content Areas.

Fees and Registration Mechanics

The standard written examination fee is $500. Miss your registration deadline and a $150 late surcharge applies on top of that. These figures apply specifically to the written exam - the separate oral examination carries a standard fee of $1,000, and the clinical examination carries a standard fee of $2,000. Budget for all three stages if you're planning the full certification pathway, not just the written exam in isolation.

• Written exam: $500 standard, +$150 if late
• Oral exam: $1,000 standard (separate stage, separate scheduling)
• Clinical exam: $2,000 standard (separate stage, separate scheduling)

A full cost breakdown, including how these fees stack across the multi-year pathway, is available in Anesthesiology Certification Cost 2026: Complete Pricing Breakdown.

Eligibility and the Training Timeline

To sit for the written exam, candidates must have completed the Clinical Base Year plus CA-1 - two full years of formal anesthesiology training - by the examination date, with training verification submitted directly by the residency program. This is a hard checkpoint: you can't simply register and hope your training catches up before test day.

Full primary certification is a longer arc. Beyond passing the written exam, candidates must complete the oral and clinical examination stages, satisfy residency and applicable clinical-practice requirements, and finish all examination stages within six years after residency (subject to board petition provisions for exceptions). Treat the written exam as stage one of a multi-year certification journey, not the finish line.

For the complete list of prerequisites, documentation, and program-verification steps, see Anesthesiology Requirements 2026: Eligibility, Prerequisites & How to Qualify.

Passing Score and Scaled Scoring

The written exam uses a scaled score, not a raw percentage. Passing requires a scaled score of 500 on a range of 200-800. Because the scale is standardized, a "500" doesn't necessarily map to a fixed percentage of correct answers on any given exam form - which is exactly why chasing an arbitrary percentage target during practice is less useful than building consistent, domain-proportional accuracy.

AOBA reports an 86.36% five-year aggregate pass rate for first-time, board-eligible written candidates, excluding repeat takers. That figure is a five-year aggregate, not a single-year rate, so use it as context for how the exam has historically performed rather than as a guarantee for any specific test date.

For a full discussion of what the scaled score means in practice and how it's calculated, see Anesthesiology Passing Score 2026: Exactly What You Need to Pass, and for historical pass-rate context, see Anesthesiology Pass Rate 2026: What the Data Shows.

Remote Proctoring Checklist

The written exam is delivered remotely through the AOA MonitorEDU/secure-browser process. Set up and test your environment well before exam day - technical issues discovered at check-in cost you time you don't have.

• Valid identification matching your registration exactly
• A private, quiet room free of unauthorized materials
• Compatible equipment and a working webcam/microphone for the secure browser
• Familiarity with on-screen tools: calculator, laboratory values reference, and scratchpad

Keeping Certification: OCC and Longitudinal Assessment

Passing the written exam is only the beginning. Once fully certified, maintaining status through the Osteopathic Continuous Certification (OCC) program requires active licensure, 75 CME credits per three years (including 18 AOA Category 1-A/1-B credits), a quality-improvement attestation every three years, and 30 untimed longitudinal-assessment questions annually with a 70% standard and remediation for those who don't meet it. The 2026 assessment cycle runs through the AOA Learning Portal, with entry timing tied to your certification cohort.

It's worth internalizing this early: the exam-day cheat sheet you're reading now is just the first of many recurring study cycles you'll repeat throughout your career under OCC.

Last-Mile Review Plan by Domain

In the final stretch before exam day, allocate review time proportionally to domain weight rather than personal comfort. A simple four-block structure works well because it mirrors the exam's own four 90-minute sections.

This block structure also doubles as a light form of spaced repetition - cycling back through Physiologic and Clinical Sciences more than once before test day, since together they represent 75% of the scored content. For a fuller multi-week preparation framework, see Anesthesiology Study Guide 2026: How to Pass on Your First Attempt, and run timed sets on our practice test platform to simulate the four-section pacing before you sit the real exam.

AOBA vs. ABA in One Paragraph

Candidates frequently search for how the AOBA pathway compares to the American Board of Anesthesiology pathway. This site's focus is exclusively the AOBA General Anesthesiology Primary Written Examination and its associated oral, clinical, and OCC requirements - a distinct pathway from ABA certification, with its own fee structure, its own eligibility rules built on the Clinical Base Year plus CA-1, and its own scaled scoring system. If you're comparing the two boards for career planning purposes, keep the fee figures, exam formats, and eligibility windows separate - don't assume numbers from one pathway apply to the other.

Who Actually Asks for This Credential

Hospital credentialing committees, anesthesia group practices, and multi-specialty surgical centers that recognize AOA board certification typically look for AOBA status as part of privileging and staff appointment. Because full primary certification depends on completing written, oral, and clinical stages plus practice requirements within the six-year post-residency window, employers reviewing candidates often check where a candidate stands in that sequence, not just whether the written exam is complete.

To understand how this credential fits into broader career and compensation planning, see Anesthesiology Salary Guide 2026: Complete Earnings Analysis and Is the Anesthesiology Certification Worth It? Complete ROI Analysis 2026. For a broader look at day-to-day roles and hiring patterns, see Anesthesiology Jobs.

Frequently Asked Questions