Key takeaways
- CCI’s published 2025 pass rate for the RCES exam is 73% for first-time test takers.
- That places RCES fourth among CCI’s nine credentials, two points below RCIS at 75%, against a range that bottoms out at 56%.
- The invasive credentials — RCIS and RCES — pass at higher rates than the technician-level and vascular exams, largely because of who is eligible to sit them.
- CCI publishes first-time rates only. Any second-attempt or retake pass rate you see quoted is unsourced, and we will not estimate one.
- The 73% pass rate is unrelated to the passing standard itself, which is a scaled score of 650 out of 900.
The number
The RCES exam pass rate is 73% for first-time test takers, per Cardiovascular Credentialing International’s own published 2025 figures. Roughly seven in ten people who sit the RCES for the first time pass it.
That figure comes directly from CCI’s student community resources, where CCI publishes annual pass rates for every credential it administers. It is not a survey, not a forum estimate, and not our inference — it is the credentialing body reporting on its own exam.
That sentence needs saying because a great deal of the RCES content online asserts that CCI does not publish pass rates. That claim is out of date. The table exists, it is public, and it is reproduced in full below.
Every CCI credential’s 2025 pass rate
A single number is far more useful with its neighbours. Here is CCI’s complete published table for 2025, all first-time test takers:
| Credential | 2025 pass rate | What it covers |
|---|---|---|
| RCIS | 75% | Registered Cardiovascular Invasive Specialist — the cath lab credential |
| RPhS | 75% | Registered Phlebology Sonographer |
| RCS | 74% | Registered Cardiac Sonographer |
| RCES | 73% | Registered Cardiac Electrophysiology Specialist — the EP lab credential |
| RCCS | 72% | Registered Congenital Cardiac Sonographer |
| CCT | 61% | Certified Cardiographic Technician |
| CRAT | 57% | Certified Rhythm Analysis Technician |
| ACS | 56% | Advanced Cardiac Sonographer |
| RVS | 56% | Registered Vascular Specialist |
Source: cci-online.org/communities/students/, 2025 pass rates, first-time test takers. Retrieved and verified 2026-07-25. CCI updates these annually — check the source before quoting the number anywhere it matters.
Two things stand out. RCES sits in the upper third of CCI’s range, close behind the RCIS at 75% and a long way above the 56% floor. And the two invasive credentials cluster together at the top, well clear of the technician-level exams.
That is not because the RCES is an easy exam. It is because of who is permitted to sit it. Every RCES eligibility pathway requires either a year or two of full-time electrophysiology work, or graduation from a programme built for this work. The population taking this exam has already been filtered by the job itself. Nobody wanders into the RCES.
Why RCES sits two points below RCIS
People read a lot into that gap. I would read very little into it.
Two percentage points across two different candidate populations, two different blueprints, and two different annual cohorts is well within the range you would expect from noise. It does not establish that the RCES is a harder exam than the RCIS, and it certainly does not tell you anything about your own odds on either.
What is defensible to say is that the two exams are structurally comparable: same length, same duration, same scaled passing standard, same testing vendor, same fee. If you are trying to decide between them, the pass rates should not be a factor at all — the question is which lab you work in. We lay that decision out properly in RCIS vs RCES.
What a 73% pass rate actually tells you
Less than most people assume, and something different from what they assume.
The most common misreading is to treat 73% as a target score. It is unrelated to your score. The RCES is graded on a scaled score of 650 out of 900, calibrated to the difficulty of the specific form you are given, so there is no fixed percentage of correct answers that guarantees a pass. We break that down on the RCES passing score page. A 73% pass rate and a 650 scaled score are two unrelated numbers that happen to sit on the same page.
The second misreading is fatalistic: more than a quarter fail, so my odds are 73%. They are not. That figure is a population average across candidates who prepared well, candidates who prepared badly, and candidates who registered because their manager suggested it and opened a book twice. You are not a random draw from that distribution, and your preparation moves you within it a long way.
What the number is genuinely good for is calibration. A 73% first-attempt rate tells you this is a real exam that a prepared professional passes — not a rubber stamp, and not a gauntlet. If someone tells you the RCES is trivial, the 27% failure rate says otherwise. If someone tells you most people fail it, the data says that is false too.
What separates the 73% from the 27%
I have not sat this exam and do not hold the credential. I hire, onboard, and develop the people who do, and I have watched a lot of them go through it. The pattern is consistent enough that I will state it plainly.
Failure on this exam is almost never a knowledge problem. The people who struggle are rarely the weakest staff in the lab. Some of the strongest EP people I have worked with — the ones I would want on the table for a tamponade — have found this exam the hardest. That surprised me until I understood the mechanism.
- Pattern recognition without mechanism. Someone who has watched three hundred AVNRT ablations can call the rhythm from across the room. Ask them in question form why a dual-pathway jump appears where it does during programmed stimulation, and they have never needed to articulate it. The exam tests the why. The job rewards the what. That gap is the single biggest predictor of trouble I see.
- Studying the fun 21% and skipping the bookends. Everyone over-prepares ablation. Ablation is genuinely interesting. But the blueprint puts pre-procedural and post-procedural activities together at 17% of the scored exam, and those are precisely the domains people skip because they feel like common sense on the floor. They are not common sense in question form.
- Mapping-system fluency mistaken for mapping knowledge. Being expert on the system your lab happens to own is not the same as understanding activation mapping, voltage mapping, and signal filtering as concepts. The exam is vendor-neutral. Your muscle memory is not.
- Experience mistaken for readiness. The candidates I worry about most are the ten- and fifteen-year veterans. They are excellent at the work and they walk in having studied less than the new graduate, because it does not feel like there is anything to study. Length of service is not preparation. I have seen it cost good people an attempt and $365.
- No timed full-length rehearsal. One hundred and seventy questions in three hours is a stamina problem as much as a knowledge problem. People who have never sat the whole thing under time discover in hour two that their accuracy falls off a cliff, and they discover it on the day it counts.
The ones who pass comfortably almost all did the same unglamorous thing: they found out early which domains they were weak in, then spent their study time there instead of where it felt good. That is the whole trick. It is not a satisfying answer, but it is the honest one.
And to anyone reading this after a failed attempt: it is a retakeable exam, and a first-attempt failure maps your gaps with more precision than any practice test will. The people I have seen come back and pass did not study harder the second time. They studied narrower.
What CCI does not publish
CCI publishes first-time test taker rates only. There is no published RCES retake pass rate, no published pass rate by eligibility pathway, and no published breakdown by professional background. If you find a page quoting any of those, it is not sourced — and we are not going to invent one to fill the gap.
Likewise, we do not publish a pass rate for Cardiac Codex users. We could construct a flattering number from self-reported outcomes; it would mean nothing, because the people who report back are not a representative sample. Judge our material on the free questions instead.
How to tell which side of the line you are on
The pass rate cannot tell you whether you personally are ready. These signals can:
- You are scoring consistently on full-length, timed, blueprint-matched practice — not on untimed sets of twenty random questions, which flatter everyone.
- You can explain why the wrong answers are wrong, not just recognise the right one. Recognition collapses under exam pressure; explanation does not.
- Your weakest domain is known to you and has been deliberately drilled. If you cannot name your weakest domain, that is the finding.
- Intracardiac electrograms feel readable rather than memorised — you can reason from a signal to its origin rather than matching a picture.
Find out where you actually stand, in 25 questions
A free RCES diagnostic drawn from the Cardiac Codex curriculum, with a topic-level breakdown of your weak domains. Pick your exam and the first question loads immediately — the questions start right away, and no email is required.
Start the free diagnostic The RCES Exam: Complete 2026 Guide →RCES pass rate FAQ
What is the RCES exam pass rate?
CCI’s published 2025 pass rate for the RCES exam is 73% for first-time test takers. This is CCI’s own figure, published in its student community resources, not a third-party estimate.
Does CCI publish official RCES pass rates?
Yes. CCI publishes annual pass rates for all nine of its credential exams in its student community resources at cci-online.org. The figures cover first-time test takers. Content claiming CCI does not publish pass rates is out of date.
Is the RCES pass rate lower than the RCIS?
Slightly. The 2025 figures are 73% for RCES and 75% for RCIS. A two-point gap across different candidate populations and different blueprints is small enough that it should not influence which credential you pursue.
What is the RCES retake pass rate?
CCI publishes first-time test taker rates only; it does not publish retake figures. Any second-attempt number you see quoted elsewhere is unsourced, and we will not estimate one.
Is the RCES exam hard?
It is demanding because it is broad — 170 questions across the entire EP lab in three hours — but a 73% first-attempt rate places it in the upper third of CCI’s range, which runs down to 56%. Roughly seven in ten first-time candidates pass.
Does a 73% pass rate mean I need 73% correct to pass?
No. These are unrelated numbers. 73% is the share of first-time candidates who pass. The passing standard itself is a scaled score of 650 on a 0 to 900 scale, calibrated to the difficulty of your particular exam form.
Why do the invasive credentials pass at higher rates?
Largely because of eligibility. Every RCES and RCIS pathway requires substantial full-time clinical experience or graduation from a programme built for the work, so the candidate population has already been filtered by the job before anyone sits the exam.