CGRN Pass Rate 2026: What the Data Shows

The Numbers: What ABCGN Actually Reports

Anyone researching the CGRN pass rate for 2026 planning purposes should start with the only figure ABCGN has actually published: a 55.89% first-time pass rate among the 596 candidates who sat for the exam in 2025. That's the full extent of the publicly reported data. There is no multi-year trend table, no breakdown by domain performance, and no published split between scored and unscored items within the 175-question exam. If you see a blog or forum post citing a different number, treat it skeptically unless it links directly to an ABCGN source.

This single data point matters more than it might seem. It tells you that just over half of first-time test-takers clear the bar on their initial attempt, which places CGRN in a middle tier of difficulty relative to other specialty nursing certifications - not a rubber-stamp credential, but not a credential with a brutally low pass rate either. For a deeper look at how this compares to other nursing exams and what makes CGRN specifically challenging, see How Hard Is the CGRN Exam? Complete Difficulty Guide 2026.

Why the First-Time Pass Rate Sits Where It Does

ABCGN doesn't publish item-level analytics, so nobody can say with certainty which domain drags the pass rate down the most. But the structure of the exam gives strong hints. The CGRN is a 175-question, four-option multiple-choice exam administered in three hours through Prometric, and it draws from a four-domain blueprint that has been unchanged since October 2017. That stability is actually useful for candidates: the content architecture is mature, well-tested, and predictable - but predictability doesn't mean the content is easy to master.

A few structural factors likely contribute to the rate hovering just above the midpoint:

• Breadth across procedural and clinical domains. Candidates must be fluent in endoscopy-specific procedural knowledge, direct patient care, and infection control simultaneously - not just one clinical lane.
• Experience diversity among candidates. GI nurses come from endoscopy suites, inpatient GI units, research roles, and administrative GI positions. Not every candidate has equal day-to-day exposure to every domain the exam tests.
• Reference material currency. ABCGN's official reference list is updated through 2024, meaning candidates studying from outdated textbooks or old peer notes may be working from material that no longer matches current best practice.

For a full walkthrough of how to structure study time against these blueprint realities, the CGRN Study Guide 2026: How to Pass on Your First Attempt goes deeper into sequencing and resource selection.

Domain Weighting and Where Candidates Lose Points

The CGRN blueprint has four domains, and their relative weight is the single best predictor of where study time should go. Here's how the 175 questions are distributed:

Because ABCGN doesn't disclose the scored-versus-unscored split of the 175 items, these question counts are proportional estimates based on domain weighting rather than confirmed scored-item totals - but they're directionally reliable for planning study time.

A full breakdown of all four domains, including the two smaller ones, is available in CGRN Exam Domains 2026: Complete Guide to All 4 Content Areas, which is worth reading before you build a study calendar.

Scoring Mechanics: 450 on a 200-800 Scale

The CGRN uses a criterion-referenced passing standard rather than a fixed percentage-correct threshold. Candidates need a scaled score of 450 on a 200-800 scale. This matters for interpreting the pass rate: because the standard is criterion-referenced, the passing bar reflects a fixed level of competency determined through psychometric analysis, not a moving target that shifts based on how well or poorly a given testing cohort performs.

In practical terms, this means the 55.89% pass rate isn't artificially depressed or inflated by a "curve." Candidates who reach the competency threshold pass regardless of how the rest of the cohort scores. For the full mechanics of how raw answers convert to the scaled score, see CGRN Passing Score 2026: Exactly What You Need to Pass.

Who Is Testing and What That Means for You

The 596 candidates tested in 2025 represent a relatively niche, specialized applicant pool compared to broad RN licensure exams. CGRN candidates typically already work in GI or endoscopy settings - ambulatory surgery centers, hospital endoscopy suites, GI clinics, and occasionally research or administrative GI roles. This has two implications for your prep:

• The exam assumes practical familiarity. Because most candidates are already practicing GI nurses, the exam can lean on scenario-based questions that assume you've seen real procedures, not just read about them in a textbook.
• Employer demand is a strong motivator. Many candidates pursue CGRN specifically because employers or hiring managers for GI-focused positions favor or require it. If you're evaluating whether the credential is worth the investment relative to your career path, Is the CGRN Certification Worth It? Complete ROI Analysis 2026 and CGRN Salary Guide 2026: Complete Earnings Analysis both address this from different angles, and CGRN Jobs covers where the credential shows up in job postings.

Eligibility Friction That Affects Readiness

Before the pass rate even becomes relevant, candidates have to clear ABCGN's eligibility requirements - and gaps here can indirectly affect exam readiness. To sit for the CGRN, you need:

• An unrestricted RN license in the United States or Canada
• Current engagement in GI or endoscopy practice
• At least two years of full-time experience, or 4,000 part-time-equivalent hours, within the preceding five years in a qualifying clinical, supervisory, administrative, educational, or research role performed as an RN
• Two responsible specialty practitioners who can verify your experience and qualifications

Candidates who barely meet the minimum experience threshold - say, exactly two years, concentrated in one narrow role - sometimes have thinner exposure to domains outside their daily work. That's a plausible contributor to lower first-attempt scores in Gastroenterological Procedures or Patient Care Interventions if a candidate's day-to-day role is administrative or educational rather than bedside-procedural. Full eligibility detail, including how the verification process works, is covered in CGRN Requirements 2026: Eligibility, Prerequisites & How to Qualify.

A CGRN-Specific Prep Timeline

Generic study techniques - spaced repetition, timed practice blocks - only help if they're mapped onto the actual CGRN blueprint. Given that Gastroenterological Procedures is worth 35% (nearly double the smallest domain), the biggest domain should get the most calendar weeks, not equal time across all four.

Running full-length timed practice sets on our CGRN practice test platform is the most direct way to see how your performance breaks down across these four domains before exam day, rather than guessing where your gaps are.

Retake Costs and Renewal Considerations

The financial stakes of the pass rate are worth spelling out. The CGRN exam fee is USD 430 for SGNA members and USD 520 for nonmembers. Given that nearly 44% of first-time candidates don't pass, a retake isn't a trivial expense - it's a second full fee, plus another round of scheduling through Prometric or live remote ProProctor. A detailed cost breakdown, including membership economics, is available in CGRN Certification Cost 2026: Complete Pricing Breakdown.

This is one of the strongest arguments for treating first-attempt preparation seriously rather than viewing the exam as low-stakes. Once certified, CGRN is valid for five years and can be renewed either by re-examination or by accumulating 75 contact hours (60 GI-specific hours, including 30 GI-specific Category 1 live nursing seminar or workshop hours) - so the exam itself is not something most nurses plan to repeat routinely.

Before you even schedule, it's worth confirming testing windows and deadlines relevant to your target date; see CGRN Exam Dates 2026: Testing Windows, Deadlines & Scheduling for how Prometric and ProProctor scheduling actually works. And for a fast pre-exam refresher once you've completed your primary study plan, the CGRN Cheat Sheet 2026: One-Page Review of Must-Know Facts condenses the highest-yield facts across all four domains.

Frequently Asked Questions