- What CSFA Actually Stands For and Who Grants It
- Who Hires CSFAs and Where They Work
- Exam Structure: Format, Timing, and Scoring
- The Three CSFA Domains in Depth
- Registration, Fees, and Prerequisites
- What Happens on Test Day
- Mapping Your Prep to the Blueprint
- Recertification and Keeping the Credential
- Frequently Asked Questions
- CSFA is granted by NBSTSA and requires graduation from a CAAHEP-accredited Surgical First Assistant program.
- The exam has 175 questions (150 scored, 25 pretest) with a 4-hour limit, delivered via PSI.
- Passing requires 99 correct answers on the 150 scored questions.
- Perioperative Care makes up 55% of the exam, driven largely by Intraoperative Procedures content.
What CSFA Actually Stands For and Who Grants It
CSFA stands for Certified Surgical First Assistant. It's a national credential awarded by the National Board of Surgical Technology and Surgical Assisting (NBSTSA), the same organization that certifies surgical technologists. If you're coming to this page after searching variations like CSFA Meaning, What Does CSFA Stand For?, or What Does CSFA Mean?, the short answer is the same everywhere: it's a board certification, not a job title you can claim informally.
Unlike some allied health credentials that let candidates sit for the exam based on work experience alone, CSFA eligibility is tied directly to education. The prerequisite is graduation from a CAAHEP-accredited Surgical First Assistant program. There's no experience-only pathway carved out in the current handbook, which means the credential is fundamentally an academic-plus-clinical achievement before it's ever a testing achievement.
For a deeper breakdown of the credential itself, including how it differs from related titles, see our companion piece on CSFA Certification and the more general overview at What Is A CSFA?.
Who Hires CSFAs and Where They Work
Surgical first assistants work directly under the supervision of the operating surgeon, providing exposure, hemostasis, tissue handling, and closure support during procedures. Employers include hospital surgical departments, ambulatory surgery centers, and increasingly specialty practices in orthopedics, cardiovascular surgery, and general surgery that run high procedural volumes and want dedicated first-assist coverage rather than relying solely on residents or PAs.
Because the role is procedure-facing rather than administrative, hiring managers care about two things: the credential itself as proof of standardized competency, and demonstrated comfort across a range of case types. That's part of why the exam blueprint leans so heavily on hands-on perioperative content rather than abstract theory. If you want a sense of realistic job titles and settings, our CSFA Jobs guide walks through common employer types, and CSFA Salary Guide 2026: Complete Earnings Analysis covers compensation factors without relying on invented numbers.
Exam Structure: Format, Timing, and Scoring
The CSFA exam is a computer-based, multiple-choice test administered at PSI testing centers. Here's the mechanical breakdown every candidate should memorize before scheduling anything:
- Total questions: 175, split into 150 scored questions and 25 unscored pretest questions.
- Time limit: 4 hours to complete the full exam.
- Passing score: 99 correct answers out of the 150 scored questions.
- Format: Standard multiple-choice, computer-delivered, no adaptive branching.
The 25 pretest questions are mixed in without being labeled, so you cannot identify and skip them. This matters practically: don't waste mental energy trying to guess which questions "don't count." Treat every question with equal seriousness, since flagging one as unimportant risks misjudging a scored item.
Four hours for 175 questions works out to roughly 1.4 minutes per question, which is generous compared to some certification exams, but the length still tests endurance. Surgical scenario questions in particular tend to be longer and require reading through case details before you get to the actual question stem.
The Three CSFA Domains in Depth
The CSFA blueprint is organized into three content domains, and understanding their relative weight is the single most important planning input for your prep. Ignoring the weighting and studying every topic equally is one of the most common - and avoidable - mistakes candidates make.
Domain 1: Perioperative Care (55%)
This is, by a wide margin, the largest domain on the exam, and Intraoperative Procedures drives most of its weight. Expect deep coverage of pre-op patient assessment, positioning, draping, intraoperative tissue handling, hemostasis techniques, wound closure, and post-op patient handoff.
- Intraoperative decision-making and surgeon support across multiple specialties
- Positioning and exposure techniques specific to procedure type
- Closure methods, suturing principles, and wound management
Domain 2: Ancillary Duties (14%)
The smallest domain but not one to skip. It covers supporting responsibilities that surround the core surgical role - documentation, equipment handling, and coordination tasks that keep a case running smoothly outside the sterile field's core actions.
- Equipment and instrument management logistics
- Documentation and communication responsibilities
Domain 3: Basic Science (31%)
This domain anchors the clinical judgment tested elsewhere on the exam. Anatomy, physiology, microbiology, and pharmacology questions show up here, often applied to surgical contexts rather than asked in isolation.
- Applied anatomy and physiology by body system
- Microbiology and infection control principles
- Pharmacology relevant to perioperative medication administration
Because Perioperative Care alone accounts for more than half the exam, and Basic Science supplies the reasoning foundation behind it, these two domains together make up the vast majority of your scored questions. Ancillary Duties, while smaller, still represents real points that separate a 99 from a 95. For domain-by-domain breakdowns with topic checklists, see CSFA Domain 1: Perioperative Care (55%) - Complete Study Guide 2026, CSFA Domain 2: Ancillary Duties (14%) - Complete Study Guide 2026, and CSFA Domain 3: Basic Science (31%) - Complete Study Guide 2026. For the full blueprint discussion in one place, our CSFA Exam Domains 2026: Complete Guide to All 3 Content Areas pulls all three together.
Key Takeaway
Allocate your study hours roughly in proportion to domain weight - Perioperative Care should consume noticeably more of your calendar than Ancillary Duties, not equal time.
Registration, Fees, and Prerequisites
Before you can schedule a seat with PSI, you need documented completion of a CAAHEP-accredited Surgical First Assistant program. NBSTSA verifies this eligibility as part of the application process outlined in the 2025 CSFA Candidate Handbook (1st Edition), which is the current governing document for exam content, policies, and procedures.
| Item | Cost |
|---|---|
| Initial exam fee - AST member | $240 |
| Initial exam fee - non-member | $350 |
| Renewal by continuing education | $45 |
| Renewal by examination - AST member | $450 |
| Renewal by examination - non-member | $550 |
Note the meaningful gap between AST member and non-member pricing, both for initial testing and for recertification by exam. If you're not already an AST member, it's worth running the math on membership cost versus the fee difference before you register. For a complete pricing walkthrough, including how these figures compare across the credential lifecycle, read CSFA Certification Cost 2026: Complete Pricing Breakdown.
What Happens on Test Day
CSFA is administered exclusively at PSI testing centers, and the testing room rules are strict and non-negotiable. You will not be permitted to bring textbooks, notes, study materials, personal electronics, or personal items of any kind into the testing room. The testing center provides scratch paper for calculations or notes during the exam, but that scratch paper must be returned before you leave - you cannot take any written material out with you.
Because personal items are prohibited, plan your day around not having access to a phone, watch, or notes during the exam block. Use the provided scratch paper strategically for flagging tricky scenario questions or working through anatomy-based reasoning in Basic Science items, since you can't rely on any outside reference.
Mapping Your Prep to the Blueprint
Generic study advice - flashcards, timed blocks, spaced review - only helps if it's pointed at the right content in the right proportion. Given that Perioperative Care is 55% of the exam and Basic Science is 31%, a sensible multi-week plan front-loads those two domains while still leaving dedicated time for Ancillary Duties so it isn't neglected entirely.
Perioperative Care Foundations
- Review intraoperative procedure sequences across major specialties
- Drill positioning, draping, and exposure scenarios
- Practice closure and hemostasis question types
Basic Science Integration
- Connect anatomy/physiology review directly to surgical scenarios from Domain 1
- Cover pharmacology relevant to perioperative medication administration
- Review microbiology and infection control principles
Ancillary Duties and Weak-Point Cleanup
- Cover documentation and equipment logistics content
- Revisit any Domain 1 or 3 areas that tested poorly in practice sets
Full-Length Practice and Timing
- Run full 175-question timed simulations under the 4-hour limit
- Review missed questions by domain, not just overall score
For a more detailed, structured prep plan with practice question strategy, see CSFA Study Guide 2026: How to Pass on Your First Attempt and Best CSFA Practice Questions 2026: What to Expect on the Exam. If you want an honest assessment of exam difficulty before you commit to a timeline, How Hard Is the CSFA Exam? Complete Difficulty Guide 2026 breaks down what makes it challenging beyond just the pass rate number. You can also build timed familiarity with the question style using the practice tests available at our main practice test platform before you ever set foot in a PSI center.
Recertification and Keeping the Credential
CSFA is not a one-time achievement - it requires active renewal. There are two paths:
- Renewal by continuing education: Submit AST-approved CE credits to AST along with a renewal application to NBSTSA, paying the $45 renewal fee.
- Renewal by examination: Retake the exam and pay $450 as an AST member or $550 as a non-member.
Most working CSFAs choose the CE route since it's substantially less expensive and doesn't require re-sitting a 4-hour, 175-question exam. But keeping the recertification-by-exam option on the table matters if you fall behind on CE credit accumulation for any reason.
If you're still deciding whether the time, cost, and ongoing renewal commitment are worth it relative to your career goals, our analysis in Is the CSFA Certification Worth It? Complete ROI Analysis 2026 weighs those tradeoffs directly. And if this page was a jumping-off point from a broader search, related explainers like What Is CSFA Certification? and What Is CSFA? cover overlapping ground from slightly different angles, along with CSFA Training for how the accredited program pathway actually works before you're even eligible to register.
Key Takeaway
Track your CE credits year-round rather than scrambling before your renewal deadline - the $45 CE renewal fee is far cheaper than paying full recertification-by-exam pricing.
Frequently Asked Questions
The National Board of Surgical Technology and Surgical Assisting (NBSTSA) governs the credential, and PSI serves as the testing provider that administers the exam at its testing centers.
There are 175 total questions - 150 scored and 25 unscored pretest questions - and candidates have 4 hours to complete the exam.
You need 99 correct answers out of the 150 scored questions to pass.
No. Textbooks, notes, study materials, personal electronics, and personal items are prohibited in the testing room. Only provided scratch paper is allowed, and it must be returned at the end of the exam.
Eligibility requires graduation from a CAAHEP-accredited Surgical First Assistant program. The current handbook does not outline an experience-only pathway separate from this educational prerequisite.