CCI RCS Exam Guide 2026: Adult Echo Prep That Matches the Current Blueprint
The CCI Registered Cardiac Sonographer (RCS) exam is for professionals working in adult echocardiography. It validates the knowledge and task performance needed to produce diagnostic-quality echo studies, evaluate valves, interpret anatomy and hemodynamics, optimize ultrasound imaging, and communicate clinically significant findings.
The official CCI page now lists the RCS passing score as 650 scaled, not 670. That matters because some older summaries and local prep notes still repeat the older value. The current exam is a 3-hour computer-based exam with 170 questions, including 150 scored and 20 unscored, administered year-round at Pearson VUE after CCI approves your application.
CCI RCS Exam At-a-Glance
| Item | 2026 Detail |
|---|---|
| Credential | Registered Cardiac Sonographer, RCS |
| Issuer | Cardiovascular Credentialing International, CCI |
| Scope | Adult echocardiography |
| Delivery | Pearson VUE test centers after CCI Authorization to Test |
| Questions | 170 total: 150 scored and 20 unscored |
| Time | 3 hours total; 2h50m for questions plus tutorial/survey time |
| Question types | Multiple choice plus innovative item types such as multiple response, hot spot, and drag-and-place |
| Passing score | 650 scaled score on a 0-900 scale |
| Fee | $365, including a $100 non-refundable application-processing portion |
| Application processing | CCI says complete applications require at least 15-20 business days |
| Eligibility window | 90 days after Authorization to Test is issued |
| Renewal | First renewal after 9-12 months, then triennial renewal with registry-level CEU requirements |
CCI does not publish a current official RCS pass-rate table on the credential page. Treat exact pass-rate claims from prep vendors as estimates unless they cite current CCI data.
Official RCS Content Weights
CCI bases the RCS exam on a Job Task Analysis. The official task weights are:
| RCS Content Area | Approx. % of Exam Score | What to Practice |
|---|---|---|
| Evaluating Anatomy, Physiology, and Hemodynamics | 29% | Chambers, systolic and diastolic function, cardiomyopathies, ischemia, pericardial disease, great vessels, pulmonary hypertension, masses, congenital findings, devices, strain, and infiltrative disease |
| Evaluating Valvular Echocardiographic Findings | 25% | AS, AR, MS, MR, TR, TS, PR, PS, prosthetic valves, endocarditis, gradients, valve area, regurgitation severity, and hemodynamics |
| Performing Echocardiographic Imaging | 24% | 2D TTE, M-mode, color Doppler, spectral Doppler, contrast, agitated saline, stress echo, TEE assistance, strain, 3D TTE, and 3D TEE |
| Applying the Physics of Ultrasound | 13% | Waveforms, artifacts, resolution, frame rate, Doppler optimization, color optimization, 2D, 3D, and contrast imaging |
| Performing Non-Imaging Responsibilities | 9% | History review, prior studies, order verification, ergonomics, patient preparation, reports, and communication of significant findings |
This is why adult echo prep must be visual and quantitative. You need to recognize views and pathology, but you also need to calculate and interpret gradients, valve areas, E/e', LAVi, TAPSE, S', FAC, wall motion, Doppler artifacts, and stress echo findings.
RCS vs RDCS: Which Credential Are You Studying For?
RCS is issued by CCI. RDCS is issued by ARDMS. Many employers accept either adult echo credential, but they are different exam programs with different application systems and exam requirements. CCI RCS is a one-part CCI registry exam after you qualify through a CCI pathway. ARDMS RDCS adult echo candidates must satisfy ARDMS requirements and pass the ARDMS specialty path.
If you are applying for a job or clinical site requirement, read the exact wording. If it says RCS, use CCI. If it says RDCS, use ARDMS. If it says RCS or RDCS, either may satisfy the credential requirement, but verify with the employer or program.
12-Week RCS Study Plan
| Week | Focus | Practice Priority |
|---|---|---|
| 1 | Diagnostic and physics refresh | Propagation speed, resolution, Doppler, Nyquist, artifacts, optimization |
| 2 | Standard views and anatomy | PLAX, PSAX, apical, subcostal, suprasternal, 17-segment model |
| 3 | Chamber quantitation | Simpson EF, LV mass, LAVi, RV size/function, TAPSE, S', FAC |
| 4 | Aortic valve disease | Bernoulli equation, continuity equation, AS severity, AR mechanisms |
| 5 | Mitral valve disease | MS planimetry/PHT, MR PISA, vena contracta, pulmonary vein flow |
| 6 | Right-sided and prosthetic valves | TR/TS, PR/PS, prosthetic gradients, endocarditis, valve complications |
| 7 | Diastolic function | E/A, e', E/e', LAVi, TR velocity, filling pressure logic |
| 8 | Cardiomyopathies | DCM, HCM/SAM/LVOT obstruction, RCM, amyloid, takotsubo, ARVC |
| 9 | Ischemia and stress echo | Wall motion scoring, coronary territories, exercise and pharmacologic stress |
| 10 | Pericardial, aortic, masses, congenital | Tamponade, constriction, dissection, coarctation, ASD/VSD/PFO, masses |
| 11 | Full mixed timed blocks | Mix image interpretation, calculations, and item-type practice |
| 12 | Final review | Rework weak domains, formulas, severity thresholds, exam-day logistics |
High-Yield RCS Formulas and Thresholds to Know
- Simplified Bernoulli equation: pressure gradient equals 4V squared.
- Continuity equation for aortic valve area: LVOT area times LVOT VTI divided by AV VTI.
- Simpson biplane EF and how foreshortening changes volume estimates.
- Diastolic function inputs: E/A, septal and lateral e', E/e', LAVi, and TR velocity.
- Severe aortic stenosis pattern: high Vmax, high mean gradient, and AVA below 1.0 cm2, interpreted with flow state.
- Tamponade signs: chamber collapse timing, IVC plethora, and respiratory inflow variation.
- Constriction clues: septal bounce, respiratory variation, and hepatic vein expiratory diastolic reversal.
Common RCS Mistakes
- Using 670 as the passing score. CCI's current RCS page states that a scaled score of 650 is required to pass.
- Overstudying physics while underdrilling valves. Physics matters, but valvular findings are 25% and hemodynamics/anatomy is 29%.
- Memorizing thresholds without image context. The exam tests how echo measurements are acquired, not only what the numbers mean.
- Ignoring innovative item types. Hot spot and drag-and-place items punish weak anatomy and view recognition.
- Skipping non-imaging responsibilities. Patient history, order verification, ergonomics, reporting, and communication are a real 9% of the exam.
- Not scheduling promptly after ATT. Your CCI Authorization to Test starts a 90-day eligibility window.
Official Sources
- CCI Registered Cardiac Sonographer credential page
- CCI applicant handbook PDF
- CCI RCS examination overview PDF
- Pearson VUE CCI testing page
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