CVT Echocardiography Techniques 2

Question 1

Which Doppler modality is best suited 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 exceeding 4 m/s.

Question 2

In M-mode echocardiography, which measurement is used to calculate fractional shortening?

Accepted Answer

Left ventricular end-diastolic and end-systolic diameters

Answer

Fractional shortening = (LVEDD − LVESD) / LVEDD × 100%, derived from M-mode LV diameter measurements.

Question 3

The apical four-chamber view is obtained with the transducer placed at the cardiac apex oriented to display which structures simultaneously?

Accepted Answer

Both ventricles and both atria

Answer

The apical four-chamber view displays all four cardiac chambers and both atrioventricular valves in a single plane.

Question 4

Which artifact appears as a bright linear echo parallel to a strong reflector and is caused by reverberation between the transducer and a highly reflective surface?

Accepted Answer

Comet tail artifact

Answer

Comet tail (ring-down) artifacts are reverberation echoes from metallic or calcified structures appearing as bright linear trails.

Question 5

When performing a subcostal echocardiographic view, which structure is best visualized to assess for pericardial effusion?

Accepted Answer

Posterior pericardium adjacent to the right ventricle

Answer

The subcostal view provides an excellent window to assess effusion posterior to the right ventricle and around the cardiac apex.

(CVT) Cardiovascular Technologist Certification Practice Test

(CVT) Cardiovascular Technologist Certification Practice Test

CVT Echocardiography Techniques 2