RCS exam guide
About the Registered Cardiac Sonographer (RCS) exam
The CCI Registered Cardiac Sonographer examination is designed for professionals working in echocardiography. Use this short diagnostic to identify gaps in image acquisition, Doppler and advanced modalities, valve assessment, cardiac anatomy and hemodynamics, ultrasound physics, patient care, and communication, then organize further study around the official examination matrix.
MedPorium is an independent education platform and is not affiliated with or endorsed by Cardiovascular Credentialing International (CCI). Exam details can change; confirm them with the official source before applying.
RCS exam format at a glance
- Questions
- 170
- 150 scored; 20 unscored
- Time
- 3 hours (2 hours 50 minutes for questions, plus 10 minutes for the tutorial and survey)
- Delivery
- Computer-based at Pearson Professional Centers; offered year-round based on availability
Knowledge to review for the RCS exam
These foundations support the practical tasks in the official examination matrix.
Cardiac foundations and clinical context
- Cardiovascular and general anatomy, physiology, embryology, electrophysiology, pathophysiology, and cardiac abnormalities
- Hemodynamics, physiologic maneuvers, history and physical findings, medical terminology, and basic pharmacology
- BLS, patient and staff safety, HIPAA, medical ethics, infection control, universal precautions, and QA procedures
Echocardiographic acquisition and modalities
- 2D and M-mode imaging, spectral, tissue, and color Doppler, and basic mathematical calculations
- Contrast and agitated-saline studies, strain imaging, and pharmacologic or physiologic stress echocardiography
- TEE, 3D TTE and TEE, ultrasound instrumentation, and recognition of cardiac anatomy on other imaging modalities
Ultrasound physics and optimization
- Ultrasound wave properties, propagation, instrumentation, and transducer principles
- Spatial, temporal, and contrast resolution; frame-rate and 2D or 3D optimization
- Artifact recognition and optimization of spectral Doppler, color Doppler, and contrast imaging
RCS examination matrix
The percentages below are the approximate exam-score weights published by Cardiovascular Credentialing International (CCI). Use them to allocate study time, then adjust for your own weak areas.
9%
Performing Non-Imaging Responsibilities
Prepare for an appropriate, safe examination by reviewing the order, history, and prior studies, then communicate findings clearly while protecting patient and sonographer wellbeing.
- Review the patient's clinical history, prior studies, and echocardiographic order
- Maintain ergonomic safety and prepare, position, and educate the patient
- Prepare a report for the reading physician and communicate significant echocardiographic findings
24%
Performing Echocardiographic Imaging
Acquire diagnostic transthoracic, Doppler, contrast, stress, strain, transesophageal, and 3D datasets using the modality best suited to the clinical question.
- Perform 2D transthoracic, M-mode, color Doppler, and spectral Doppler imaging
- Perform ultrasound-enhancing-agent and agitated-saline studies
- Perform exercise, pharmacologic, and non-ischemic stress echocardiography
- Assist with TEE and perform strain, 3D TEE, and 3D TTE imaging
25%
Evaluating Valvular Echocardiographic Findings
Integrate valve structure, motion, Doppler, hemodynamics, and supporting findings to characterize native and prosthetic valve disease and endocarditis.
- Assess aortic and mitral valve structure, function, stenosis, and regurgitation
- Assess tricuspid and pulmonic valve structure, function, stenosis, and regurgitation
- Assess prosthetic valves and valvular endocarditis
29%
Evaluating Anatomy, Physiology, and Hemodynamics
The largest domain tests integrated assessment of cardiac structure, ventricular function, disease processes, devices, vessels, strain, and hemodynamics.
- Evaluate chambers, structures, systolic and diastolic function, cardiomyopathies, and ischemic heart disease
- Evaluate pericardial disease, pulmonary hypertension, great vessels, aortic disease, cardiac masses, and infiltrative disease
- Recognize congenital heart disease and implanted cardiac or mechanical-support devices
- Evaluate strain imaging and cardiac hemodynamics
13%
Applying the Physics of Ultrasound
Apply ultrasound-wave and instrumentation principles to recognize artifacts and optimize resolution, frame rate, Doppler, 2D, 3D, color, and contrast imaging.
- Identify properties of ultrasound waveforms and recognize artifacts
- Optimize spatial resolution and frame rate
- Optimize spectral Doppler waveforms and color Doppler
- Optimize 2D, 3D, and contrast images
How to use this RCS diagnostic
The 15 questions emphasize anatomy, physiology, hemodynamics, valvular assessment, and echocardiographic imaging because those domains account for 78% of the official matrix. This is a short baseline rather than a pass prediction. Review every rationale, classify each gap as acquisition, optimization, measurement, physiology, pathology, or communication, and follow with larger mixed sets that require integration across views and modalities.
High-yield RCS study priorities
Priority 1
Integrate anatomy, physiology, and hemodynamics
At 29% of the matrix, this domain deserves the largest share of study time. Practise moving from view and measurement to mechanism: explain what the chamber, waveform, flow pattern, loading condition, and clinical context mean together.
Priority 2
Assess valve disease with multiparametric evidence
Valvular findings account for 25%. For each native and prosthetic valve lesion, connect morphology with Doppler alignment, quantitative measurements, flow state, supporting chamber changes, and common sources of discordance.
Priority 3
Make acquisition decisions part of every case
Imaging represents 24% of the matrix. Rehearse which window, modality, patient position, optimization step, contrast agent, stress method, strain dataset, or 3D orientation best answers the clinical question.
Priority 4
Use physics to explain image quality
Do not study artifacts and controls as isolated definitions. For every poor image or waveform, identify the physical cause, the control that changes it, the tradeoff introduced, and how the adjustment affects diagnostic accuracy.
RCS exam FAQ
How many questions are on the CCI RCS exam?
CCI currently lists 170 questions: 150 scored questions and 20 unscored questions that are not identified during the examination.
How long is the RCS exam?
The exam appointment is three hours. CCI allocates 2 hours 50 minutes to answer questions and 10 minutes to the tutorial and post-exam survey.
What is the largest RCS exam domain?
Evaluating Anatomy, Physiology, and Hemodynamics is the largest domain at approximately 29% of the exam, followed by Evaluating Valvular Echocardiographic Findings at 25%.
Which echocardiographic modalities are included?
The outline includes 2D TTE, M-mode, spectral and color Doppler, contrast and agitated-saline studies, exercise and pharmacologic stress echo, TEE assistance, strain imaging, and 3D TTE and TEE imaging.
Is the RCS exam offered year-round?
CCI states that the computer-based RCS exam is administered year-round at Pearson Professional Centers, subject to test-center availability.
Does this diagnostic predict whether I will pass?
No. A 15-question diagnostic is a low-confidence baseline, not a validated pass prediction. Use it to identify review priorities and confirm current requirements with CCI.
Is MedPorium affiliated with CCI?
No. MedPorium is an independent education platform and is not affiliated with or endorsed by Cardiovascular Credentialing International.
Review and official source
Clinical reviewer: L. D. Reynolds
Exam format and matrix information were checked against the CCI Registered Cardiac Sonographer credential page. Source reviewed October 10, 2026.
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