CCI RCS 2

Question 1

Which Doppler modality is MOST appropriate for measuring high-velocity jets such as severe aortic stenosis?

Accepted Answer

Continuous-wave Doppler

Answer

Continuous-wave Doppler has no aliasing limit and can accurately measure high-velocity jets that exceed the Nyquist limit of pulsed-wave Doppler.

Question 2

On M-mode echocardiography, the E-point septal separation (EPSS) is used to estimate:

Accepted Answer

Left ventricular ejection fraction

Answer

EPSS reflects the distance between the anterior mitral leaflet E-point and the interventricular septum; a value >7 mm suggests reduced LVEF.

Question 3

A patient has a tricuspid regurgitation jet velocity of 3.5 m/s and an estimated right atrial pressure of 10 mmHg. What is the estimated RVSP?

Accepted Answer

59 mmHg

Answer

RVSP = 4v² + RAP = 4(3.5)² + 10 = 49 + 10 = 59 mmHg using the simplified Bernoulli equation.

Question 4

Which echocardiographic view best demonstrates the left ventricular outflow tract (LVOT) for velocity measurement by pulsed-wave Doppler?

Accepted Answer

Apical five-chamber view

Answer

The apical five-chamber view aligns the Doppler beam parallel to LVOT flow, minimizing the angle of incidence for accurate velocity measurement.

Question 5

Which tissue Doppler parameter is used as a surrogate for left ventricular filling pressure?

Accepted Answer

E/e' ratio

Answer

The E/e' ratio (transmitral E velocity divided by mitral annular e' velocity) correlates with mean left atrial pressure and LV diastolic filling pressure.

CCI - Cardiovascular Credentialing International Practice Test

CCI - Cardiovascular Credentialing International Practice Test

CCI RCS 2