- What This Credential Covers (and What It Doesn't)
- The Four Core Eligibility Requirements
- The 120 Intraoperative Hours: What Counts and What Doesn't
- Two Routes: Non-APRN (CNOR) vs. APRN
- Surgeon and OR Supervisor Recommendations
- Application, Fees, Scheduling and Retakes
- What the Exam Tests Once You Qualify
- Sequencing Your Preparation Around the Requirements
- Keeping the Credential: Recertification Requirements
- Frequently Asked Questions
- You need an unrestricted RN license, current ACLS, BLS, or CPR, acceptable RNFA-program completion, and 120 intraoperative first-assisting hours in two years.
- Practicum and internship hours count toward the 120 hours; classroom and seminar hours do not.
- Non-APRN applicants must hold a current CNOR; APRNs use accredited APRN certification instead.
- Both routes require recommendations from a surgeon and an operating-room supervisor or manager. No bachelor's degree is required.
What This Credential Covers (and What It Doesn't)
Registered Nurse Assistant at Surgery - Certified (RNAS-C) is a surgical first-assisting certification administered by the National Assistant at Surgery Certification (NASC). It is aimed at registered nurses who already work at the surgical table as first assistants, not at nurses still deciding whether perioperative practice is for them. That distinction shapes every requirement below: the eligibility rules are built to confirm that you have genuine, documented, recent experience before you ever sit for the exam.
It is also worth being clear about what this certification is not. It is not NCLEX-RN, and it is not an initial licensure pathway. You must already be a licensed RN to apply. If you are still working toward your license, this credential is a later career step. For a broader orientation, see What Is RNAS-C Certification? and What Does RNAS-C Stand For?.
The Four Core Eligibility Requirements
NASC's candidate requirements rest on four pillars. Every applicant, regardless of route, must be able to demonstrate each one.
- A current, unrestricted RN license in the country where you practice. "Unrestricted" is the operative word: a license under active restriction or discipline does not satisfy the requirement.
- Current life-support certification. NASC accepts current ACLS, BLS, or CPR. You need only one of these, but it must be current at the time of application.
- Acceptable formal RNFA-program completion. You must have completed a formal RN first assistant program that NASC considers acceptable. Confirm your program's standing with NASC before you apply rather than assuming it qualifies.
- 120 documented intraoperative first-assisting hours within the preceding two years.
Notably absent from this list: a bachelor's degree. NASC does not require one, which makes the credential accessible to experienced RNs whose educational path ran through diploma or associate programs.
| Requirement | What NASC Looks For | Common Pitfall |
|---|---|---|
| RN license | Current and unrestricted, in your country of practice | Assuming a license with conditions is acceptable |
| Life support | Current ACLS, BLS, or CPR | Letting the card lapse between application and testing |
| RNFA program | Acceptable formal completion | Not verifying the program's standing in advance |
| Practice hours | 120 intraoperative first-assisting hours in the last two years | Counting classroom time or undocumented hours |
| Degree | Bachelor's not required | Delaying application over a degree you do not need |
The 120 Intraoperative Hours: What Counts and What Doesn't
The hours requirement is where applications most often get complicated, so it deserves careful attention. The rule is specific: you need 120 documented intraoperative first-assisting hours, and they must fall within the two years preceding your application.
What counts
Eligible internship and practicum hours count toward the 120. This matters for recent RNFA-program graduates, whose supervised clinical hours are often the bulk of their documented first-assisting experience. Hours worked as a first assistant in practice also count, provided they are properly documented.
What does not count
Classroom and seminar hours do not count. Didactic instruction, no matter how rigorous, is separate from intraoperative experience. If your RNFA program combined coursework and clinical time, separate the two clearly in your records so that only the intraoperative portion is claimed.
Documenting your hours
Treat documentation as an ongoing habit, not a last-minute scramble. Keep a running log with dates, procedures, facility, and the name of a supervising surgeon or manager who can verify the work. That log is also the natural foundation for your recommendations, since the people vouching for you will be drawing on the same experience.
Two Routes: Non-APRN (CNOR) vs. APRN
NASC splits applicants into two tracks, and which one applies to you depends on your licensure category.
| Applicant Type | Additional Credential Requirement |
|---|---|
| Non-APRN registered nurse | Current CNOR certification |
| APRN | Accredited APRN certification |
For non-APRN applicants, the CNOR (Certified Perioperative Nurse) requirement is a significant gate. It signals broad perioperative competence before you move into first-assisting certification, and it must be current, not lapsed. If you do not yet hold it, factor in the time to earn it, because that will govern your overall timeline more than anything else on this list.
APRNs follow a different path: rather than CNOR, they use their accredited APRN certification. Both tracks are otherwise subject to the same core requirements, including the hours and the recommendations described next.
Surgeon and OR Supervisor Recommendations
Whichever route you take, you need recommendations from two specific people: a surgeon and an operating-room supervisor or manager. These are not interchangeable with general character references. NASC wants perspectives from the two roles that see your first-assisting work most directly: the physician you assist and the leader who oversees the OR environment you work in.
- Choose people who have observed you recently. A recommender who has watched you first-assist during the qualifying two-year window can speak credibly to your competence.
- Ask early. Surgeons and OR managers are busy, and recommendations are frequently the slowest item in the whole application.
- Give them context. Share your hours log and a short summary of the credential so they can write something specific rather than generic.
Key Takeaway
Lock in your two recommenders before you finalize anything else. Because NASC requires you to test within four months of applying, a delayed recommendation can eat into a window that is already fixed. Treat the surgeon and OR-manager letters as the critical path of your application.
Application, Fees, Scheduling and Retakes
Once you meet the eligibility requirements, the mechanics are straightforward but time-sensitive. The initial examination fee is USD 425, and a retake costs USD 195. For a deeper look at all costs, see RNAS-C Certification Cost 2026: Complete Pricing Breakdown.
Exam format and delivery
The exam is delivered as a live, remote-proctored examination through Prolydian. It consists of 150 multiple-choice questions, each with four choices and one correct answer, and you have three hours to complete it. One optional 15-minute break is available. NASC has not established an extension of the examination allowance, so plan to work within the three-hour limit.
Timing rules you must respect
- Test within four months of application. The window opens when you apply, so do not apply until you are close to ready.
- Reschedule at least four hours before your appointment. Waiting until closer to the start time puts your slot at risk.
- Results arrive within 72 hours.
Retake rules
If you do not pass, a first retake must wait 45 to 90 days after your original examination. You are limited to a maximum of three attempts in 12 months. These constraints make your first attempt more valuable than it might seem, which is a good reason to read RNAS-C Exam Dates 2026: Testing Windows, Deadlines & Scheduling before you commit to a date.
The passing standard
The passing score is 70%. Note that this is a score threshold, not a pass-rate statistic. For more detail, see RNAS-C Passing Score 2026: Exactly What You Need to Pass.
What the Exam Tests Once You Qualify
Meeting the requirements gets you to the exam; the exam content then tests your surgical first-assisting knowledge across five weighted sections drawn from the current issuer-linked RNAS-C Exam Study Guide. These are the official examination content headings, not an editorial study curriculum. The study guide is undated, and its March 2023 hosting directory should not be read as an exam-version year.
Domain 1: Surgical Patient Care (22%)
Covers the care of the surgical patient as a first assistant's responsibility.
Domain 2: Surgical Skill (22%)
The hands-on technical competencies of first assisting. The study-guide PDF uses the wording "Surgical Skill," while the current web page uses "Surgical Skills"; this article preserves the formal PDF wording.
Domain 3: Anatomy & Physiology (22%)
The anatomical and physiological knowledge underlying surgical decision-making.
Domain 4: Procedure Considerations (22%)
Procedure-specific knowledge a first assistant is expected to bring to the table.
Domain 5: Pre- and Postoperative Considerations (12%)
The smallest section by weight. The guide verifies this heading and its weight but supplies no detailed objective list for it, so no additional subtopics should be assumed.
The first four sections tie for the largest allocation at 22% each, which means roughly four-fifths of the exam weight sits in those four areas. For the full breakdown, see RNAS-C Exam Domains 2026: Complete Guide to All 5 Content Areas, and for a realistic sense of the challenge, How Hard Is the RNAS-C Exam? Complete Difficulty Guide 2026.
Sequencing Your Preparation Around the Requirements
Because the four-month testing window starts at application, the smartest move is to finish your requirements first and then compress your focused exam preparation into that window. Here is one way to sequence it, tied to the exam's actual weights.
Complete the requirements
- Verify license, life-support card, CNOR (or APRN certification), and RNFA-program standing
- Total and document your 120 intraoperative hours
- Secure the surgeon and OR-manager recommendations
Domains 3 and 4
- Anatomy & Physiology and Procedure Considerations carry 22% each and reward steady repetition
Domains 1 and 2
- Surgical Patient Care and Surgical Skill, also 22% each; connect them to your own cases
Domain 5 and full practice runs
- Pre- and Postoperative Considerations (12%), then timed 150-question sets to rehearse the three-hour pace
For a fuller approach, see the RNAS-C Study Guide 2026: How to Pass on Your First Attempt, and use the practice test to rehearse the four-choice, single-answer format under timed conditions. The RNAS-C Cheat Sheet 2026: One-Page Review of Must-Know Facts is a useful last-week reference.
Keeping the Credential: Recertification Requirements
Qualifying is only the first cycle. The certification runs for three years, and NASC updated its recertification requirements on August 6, 2025. To recertify you must:
- Maintain your RN licensure and BLS.
- Document 300 RNFA practice hours, including 250 intraoperative hours.
- Then choose one of two paths: earn 240 points and pay a USD 275 fee, or pass the recertification examination for USD 325.
NASC's FAQ states that the legacy online application remains available through the remainder of 2026 for applicants who already started recertification. The new application is downloadable, and NASC directs existing applicants to contact it about the transition rather than assuming they can freely choose the old rules. If you are mid-process, contact NASC directly before relying on either version.
Long-term value is a fair question too: see Is the RNAS-C Certification Worth It? Complete ROI Analysis 2026 and RNAS-C Salary Guide 2026: Complete Earnings Analysis, and browse RNAS-C Jobs to see where the credential fits in the hiring landscape.
Official sources were checked October 15, 2026. Requirements can change, so confirm current details directly with NASC at its application and candidate handbook before you apply.
Frequently Asked Questions
No. NASC does not require a bachelor's degree. The core requirements are an unrestricted RN license, current ACLS, BLS, or CPR, acceptable formal RNFA-program completion, and 120 documented intraoperative first-assisting hours in the preceding two years.
Yes. Eligible internship and practicum hours count toward the 120 intraoperative first-assisting hours. Classroom and seminar hours do not count, so keep them separate in your records.
Non-APRN applicants must hold a current CNOR certification. APRNs instead use an accredited APRN certification. Both routes also require recommendations from a surgeon and an operating-room supervisor or manager.
You must test within four months of application, and you can reschedule up to four hours before your appointment. A first retake must occur 45 to 90 days after the original attempt, with a maximum of three attempts in 12 months. The retake fee is USD 195.
You must maintain RN licensure and BLS, document 300 RNFA practice hours including 250 intraoperative hours, and then either earn 240 points with a USD 275 fee or pass the recertification examination for USD 325. For a basic overview of the credential, see RNAS-C Certification.