CSC Pass Rate 2026: What the Data Shows

The 2025 CSC Pass Rate: What Was Actually Reported

AACN Certification Corporation publishes exam statistics for the CSC credential, and the most recent full-year figure available is straightforward: a 52.20% first-time pass rate across 1,184 candidates tested in 2025. That's a real, published number - not an estimate - and it tells you something important before you ever schedule a testing date: fewer than six in ten first-time test-takers pass on their initial attempt.

That number alone doesn't explain why the rate sits where it does. To understand that, you have to look at how the exam is built, who is allowed to sit for it, and where the scored content actually concentrates. This article walks through each of those factors using only the mechanics AACN has published for the Cardiac Surgery (Adult) exam.

What a 55-of-75 Passing Cut Actually Means

The CSC exam delivers 90 multiple-choice questions in a 2-hour, closed-book session at PSI test centers or via Live Remote Proctoring. Of those 90 items, only 75 are scored - the remaining 15 are unscored pretest questions mixed in without identification, so every question has to be treated as if it counts.

The current passing cut is 55 correct out of 75 scored questions, roughly a 73% raw accuracy threshold. That's a meaningfully higher bar than many nursing certifications, and it leaves very little room for guessing your way through unfamiliar content. If you want the exact scoring mechanics broken down further, the CSC Passing Score 2026 guide covers how the cut score is derived and what it means for your study targets.

Domain Weighting and Why It Drives the Pass Rate

The exam blueprint currently in effect (valid through November 18, 2026) allocates points across four domains:

Notice how top-heavy this test plan is. Nearly three-quarters of your scored questions come from just two domains. Candidates who spread study time evenly across all four areas - instead of weighting time to match the blueprint - often run short on the content that actually decides pass/fail. A full breakdown of every domain, with subtopics and sample question angles, is available in the CSC Exam Domains 2026 guide.

The November 19, 2026 Test Plan Change

If you're planning your testing date around late 2026, the domain weights are about to shift. The current version applies through November 18, 2026. Starting November 19, 2026, AACN moves to a revised structure:

Therapeutic Interventions holds steady as the anchor domain in both versions, but Complications gains ground while Procedures and Monitoring and Diagnostics each lose a couple of points. If you're testing right around the cutover, confirm which version applies to your scheduled date before you build a study plan - practice questions and blueprint percentages need to match the exam you'll actually sit. The CSC Exam Dates 2026 resource is the place to check testing windows against this transition.

Who Is Actually Sitting for This Exam

The pass rate has to be read in context of who is even eligible to test. CSC candidates aren't general-practice nurses dabbling in a new area - they're required to hold an unencumbered U.S. RN or APRN license plus a current, nationally accredited clinical nursing specialty certification before they can apply. On top of that, they must satisfy one of two hours-based practice routes:

• Two-year route: 1,750 hours caring for acutely or critically ill adults in the prior two years, with 875 hours in the most recent year, and 875 of the total hours specifically in the first 48 hours after cardiac surgery.
• Five-year route: 2,000 qualifying adult acute/critical-care hours over five years, including 144 in the latest year, with 1,000 of the total hours in that same first-48-hours postoperative population.

Applicants must also identify a clinical supervisor or RN/physician colleague who can verify those hours if audited. This is a high-acuity, hands-on eligibility bar - not a paperwork formality - and it means the 1,184 candidates counted in the 2025 pass-rate figure were already experienced bedside clinicians, not newcomers guessing their way through content. For the full eligibility breakdown, see CSC Requirements 2026.

Where Candidates Lose Points

Given the blueprint, the highest-risk areas for missed points are predictable:

• Therapeutic Interventions (43%): pharmacologic titration, mechanical support devices, and intervention sequencing in the immediate postoperative period. This domain alone can make or break a passing score.
• Complications (33%): distinguishing between overlapping complication presentations - bleeding, tamponade, arrhythmias, low cardiac output - under time pressure.
• Monitoring and Diagnostics (13%): interpreting hemodynamic and lab data correctly enough to justify the intervention choice in a linked question.

Because Complications and Therapeutic Interventions frequently appear in linked clinical scenarios - recognize the complication, then select the correct intervention - a shallow understanding of either domain in isolation tends to cost points on both. This is one reason candidates who treat the exam as "memorize facts by domain" rather than "reason through cause-and-effect chains" often underperform relative to their clinical experience. A deeper look at why the exam feels harder than its content list suggests is covered in How Hard Is the CSC Exam?

A Domain-Weighted Prep Timeline

Generic study advice doesn't help much here - what matters is allocating time in proportion to the blueprint rather than evenly across four domains. Here's a weighting-informed structure many candidates use in the weeks leading up to test day:

This weighting-first approach is expanded in much more detail in the CSC Study Guide 2026, and you can run domain-weighted timed sets right now using the practice questions on CSC Exam Prep.

Initial Exam vs. Renewal: Different Pass Dynamics

The pass rate discussion above applies to first-time initial certification. Renewal works differently and doesn't carry the same "pass/fail on a single sitting" pressure for most candidates, because there are two paths to renewal:

Because most renewing nurses choose the CERP path rather than retesting, the published 52.20% figure reflects first-time initial candidates specifically - it isn't diluted by renewal exam attempts. If you're weighing whether to pursue the credential at all given this pass rate, the Is the CSC Certification Worth It? analysis and the CSC Certification Cost 2026 breakdown are useful companion reads before you commit to a testing date.

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