CCI RCS 3

Question 1

During a transesophageal echocardiogram, at approximately what depth (omniplane angle ~0°) is the four-chamber view typically obtained?

Accepted Answer

30–35 cm from incisors

Answer

The midesophageal four-chamber view is obtained with the probe approximately 30–35 cm from the incisors at 0–20° omniplane angle.

Question 2

The continuity equation for aortic valve area (AVA) is: AVA = (LVOT area × LVOT VTI) ÷ AV VTI. Which measurement is most susceptible to error due to geometric assumptions?

Accepted Answer

LVOT diameter

Answer

LVOT area is calculated as π(d/2)², so any error in the LVOT diameter is squared, making it the dominant source of error in the continuity equation.

Question 3

A patient presents with hypotension, jugular venous distension, and muffled heart sounds. The echocardiogram shows right ventricular diastolic collapse. What is the diagnosis?

Accepted Answer

Cardiac tamponade

Answer

Right atrial systolic collapse and RV diastolic collapse are the most specific echocardiographic signs of hemodynamically significant cardiac tamponade.

Question 4

Which echocardiographic parameter BEST distinguishes constrictive pericarditis from restrictive cardiomyopathy?

Accepted Answer

Respiratory variation in mitral E velocity >25% with septal bounce

Answer

Constrictive pericarditis demonstrates >25% respirophasic variation in mitral E velocity and interventricular septal bounce due to enhanced ventricular interdependence, unlike restrictive cardiomyopathy.

Question 5

Which finding is MOST consistent with severe aortic regurgitation on continuous-wave Doppler?

Accepted Answer

Pressure half-time <250 ms

Answer

A short pressure half-time (<250 ms) indicates rapid equalization of aortic and LV diastolic pressures, consistent with severe aortic regurgitation.

CCI - Cardiovascular Credentialing International Practice Test

CCI - Cardiovascular Credentialing International Practice Test

CCI RCS 3