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120+ Free CCI RCS Adult Echo Practice Questions

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Key Facts: CCI RCS Adult Echo Exam

170

Exam Questions

CCI RCS handbook

3 hours

Exam Time

CCI

650

Passing Score

CCI scaled 0-900

$365

Exam Fee

CCI 2026

29%

Anatomy, Physiology & Hemodynamics

Largest official RCS content area

150 + 20

Scored + Unscored Items

CCI RCS exam page

The CCI RCS exam contains 170 questions (150 scored and 20 unscored) over three hours. The current official matrix weights Non-Imaging Responsibilities 9%, Echocardiographic Imaging 24%, Valvular Findings 25%, Anatomy/Physiology/Hemodynamics 29%, and Ultrasound Physics 13%. CCI currently requires a scaled score of 650 on a 0-900 scale.

Sample CCI RCS Adult Echo Practice Questions

Try these sample questions to test your CCI RCS Adult Echo exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 120+ question experience with AI tutoring.

1Soft tissue propagation speed of ultrasound is assumed by echocardiography systems to be:
A.1450 m/s
B.1500 m/s
C.1540 m/s
D.1620 m/s
Explanation: Diagnostic ultrasound systems assume a fixed soft-tissue propagation speed of 1540 m/s. This value drives the depth (range) calculation: depth = (speed × time) / 2. When tissue speed differs from this assumption (e.g., fat ~1450 m/s), range artifacts can occur.
2Which formula correctly relates the speed of sound (c), frequency (f), and wavelength (λ)?
A.c = f / λ
B.c = f × λ
C.λ = c × f
D.f = c × λ
Explanation: The fundamental wave equation is c = f × λ. In tissue, c is essentially fixed (~1540 m/s), so increasing the transducer frequency proportionally decreases the wavelength. Shorter wavelengths produce better axial resolution but less depth penetration.
3Axial resolution is determined primarily by:
A.Beam width
B.Spatial pulse length
C.Pulse repetition frequency
D.Frame rate
Explanation: Axial (depth) resolution equals approximately one-half the spatial pulse length (SPL). Higher transducer frequencies and shorter pulses (fewer cycles per pulse) yield smaller SPL and better axial resolution.
4Lateral resolution is best at which location along the ultrasound beam?
A.Near field (Fresnel zone)
B.Focal zone
C.Far field (Fraunhofer zone)
D.Skin surface
Explanation: Lateral resolution depends on beam width, which is narrowest at the focal zone where the beam is most converged. Operators should place the focus at the level of the structure of interest to maximize lateral resolution.
5The Nyquist limit equals:
A.The pulse repetition frequency (PRF)
B.Half the PRF
C.Twice the PRF
D.The transducer frequency
Explanation: In pulsed-wave Doppler, the Nyquist limit equals one-half the PRF. Velocities exceeding this limit alias and wrap to the opposite end of the spectrum. CW Doppler is not bound by the Nyquist limit and can measure very high velocities.
6A pulsed-wave Doppler tracing shows aliasing across the baseline. The single best initial maneuver is to:
A.Decrease the transducer frequency
B.Shift the baseline (zero shift)
C.Increase the gain
D.Switch to color Doppler
Explanation: Baseline shifting gives the entire usable scale to the direction of interest, effectively doubling the depictable velocity in that direction without changing PRF. If aliasing persists, increasing PRF (decreasing depth, switching to high-PRF, or moving to CW Doppler) is next.
7Continuous-wave Doppler is preferred over pulsed-wave Doppler when:
A.Sampling at a specific depth is needed
B.Range resolution is essential
C.Measuring high velocities (e.g., AS jets)
D.Imaging slow venous flow
Explanation: Continuous-wave Doppler can measure very high velocities without aliasing because there is no PRF-based Nyquist limit. The trade-off is range ambiguity — CW samples all depths along the cursor.
8Tissue Doppler imaging (TDI) measures:
A.High-velocity, low-amplitude blood flow
B.Low-velocity, high-amplitude myocardial motion
C.Acoustic impedance differences
D.Backscatter intensity
Explanation: TDI applies low-pass filters and reduced gain to capture low-velocity (typically <20 cm/s), high-amplitude signals from the myocardial wall rather than blood. TDI provides the e' velocity used in the diastolic algorithm and S' for RV/LV systolic function.
9Speckle-tracking strain imaging is most often reported as:
A.Absolute peak velocity
B.Global longitudinal strain (GLS), a negative percentage
C.Color M-mode propagation slope
D.Tissue acoustic impedance
Explanation: Speckle-tracking GLS measures the percent shortening of the LV in the long axis. Normal values are typically more negative than -18% to -20%. GLS is more sensitive than EF for early subclinical dysfunction (e.g., chemotherapy-related cardiotoxicity, amyloid).
10Tissue harmonic imaging improves image quality primarily by:
A.Increasing the fundamental transmit frequency
B.Receiving signals at twice the transmit frequency to reduce near-field artifact
C.Eliminating reverberation through compounding
D.Using compound Doppler shifts
Explanation: Tissue harmonic imaging transmits at a fundamental frequency (e.g., 2 MHz) and receives at the second harmonic (e.g., 4 MHz). Harmonics develop deeper in tissue, so near-field clutter, side lobes, and reverberation are reduced, improving endocardial border definition.

About the CCI RCS Adult Echo Exam

The CCI Registered Cardiac Sonographer (RCS) credential validates adult echocardiography competency. Its current job-task matrix covers non-imaging responsibilities, echocardiographic acquisition, valvular findings, anatomy and hemodynamics, and ultrasound physics.

Questions

170 scored questions

Time Limit

3 hours

Passing Score

Scaled score 650 on CCI's 0-900 scale

Exam Fee

$365 (Cardiovascular Credentialing International (CCI))

CCI RCS Adult Echo Exam Content Outline

9%

Performing Non-Imaging Responsibilities

Review history, prior studies and orders; prepare patients and reports; maintain ergonomic safety; communicate significant findings.

24%

Performing Echocardiographic Imaging

2D, M-mode, Doppler, contrast and saline studies, stress, TEE assistance, strain, and 3D TTE/TEE imaging.

25%

Evaluating Valvular Echocardiographic Findings

All four valves, stenosis and regurgitation, prosthetic valves, and valvular endocarditis.

29%

Evaluating Anatomy, Physiology, and Hemodynamics

Chambers, function, ischemia, cardiomyopathies, pericardium, vessels, pulmonary hypertension, masses, devices, congenital disease, strain, and hemodynamics.

13%

Applying the Physics of Ultrasound

Wave properties, artifacts, resolution, frame rate, Doppler and color, and 2D, 3D, and contrast image optimization.

How to Pass the CCI RCS Adult Echo Exam

What You Need to Know

  • Passing score: Scaled score 650 on CCI's 0-900 scale
  • Exam length: 170 questions
  • Time limit: 3 hours
  • Exam fee: $365

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

CCI RCS Adult Echo Study Tips from Top Performers

1Memorize the simplified Bernoulli equation (ΔP = 4V²) and continuity equation (AVA = LVOT area × LVOT VTI / AV VTI)
2Use the current ASE diastolic-function guidance and integrate applicable variables instead of relying on the superseded 2016 algorithm alone
3Drill the 17-segment AHA model and which coronary artery supplies which segment
4Know severity thresholds: severe AS (Vmax ≥4 m/s, mean ≥40 mmHg, AVA <1.0 cm²); severe MR (EROA ≥0.40 cm², RVol ≥60 mL)
5Understand tamponade signs (RA collapse in late diastole, RV collapse in early diastole, IVC plethora, mitral inflow >25% respiratory variation)
6Distinguish constriction (respirophasic septal shift, expiratory hepatic vein reversal) from restriction (E/e' very high, biatrial enlargement)

Frequently Asked Questions

How is the CCI RCS different from the ARDMS RDCS?

CCI RCS and ARDMS RDCS-AE are adult-echocardiography credentials issued by different organizations with their own eligibility, examination, and renewal rules. Candidates should check the credential named by their employer, regulator, or education program instead of treating the two programs as interchangeable.

How many questions are on the CCI RCS exam?

The CCI RCS exam contains 170 questions: 150 scored and 20 unidentified unscored items. The three-hour appointment includes two hours and 50 minutes for questions plus 10 minutes for the tutorial and post-exam survey.

What score do I need to pass the RCS?

CCI currently requires a scaled score of 650 on a 0-900 scale. The scaled result is not a raw number or percentage correct.

What are the CCI RCS prerequisites?

CCI publishes four routes: RCS235 combines health-science education with work and study counts; RCS4 covers graduates of a programmatically accredited cardiac-ultrasound program; RCS5 covers qualifying non-programmatically accredited programs with at least one year of specialty training and 800 clinical hours; RCS6 combines an active ultrasound credential with six months of cardiac-ultrasound work and 100 studies. All applicants also need a high school diploma or equivalent and route-specific documentation.

How much does the CCI RCS exam cost?

The CCI RCS exam fee is $365 as of 2026, including a $100 non-refundable processing portion. A new credential first renews after about 9-12 months without a CEU requirement; later registry-level renewals follow a three-year cycle and currently require 36 CEUs, at least 30 cardiovascular-related, plus the fee and ethics attestation.

Where do I take the CCI RCS exam?

CCI currently delivers the RCS exam through Pearson VUE professional testing centers, year-round subject to center availability. Use the Authorization to Test and current CCI/Pearson instructions to schedule within the approved window.