ARDMS Echo Cardiac Measurements and Calculations 2

Question 1

Which measurement is used to calculate right ventricular systolic pressure (RVSP) using tricuspid regurgitation jet velocity?

Accepted Answer

4 × (TR peak velocity)² + RAP

Answer

RVSP = 4V² (TR) + RAP, where V is peak TR velocity and RAP is estimated right atrial pressure.

Question 2

What is the normal left ventricular mass index (LVMI) upper limit for women?

Accepted Answer

115 g/m²

Answer

The upper reference limit for LVMI is 95 g/m² in women and 115 g/m² in men indexed to body surface area.

Question 3

In a patient with aortic stenosis, what peak aortic jet velocity defines severe AS?

Accepted Answer

≥4.0 m/s

Answer

Severe aortic stenosis is defined by a peak aortic jet velocity ≥4.0 m/s per ACC/AHA guidelines.

Question 4

What is the normal range for left atrial volume index (LAVI)?

Accepted Answer

<34 mL/m²

Answer

A normal LAVI is <34 mL/m²; mild dilation is 34–41 mL/m², moderate 42–48 mL/m², and severe ≥49 mL/m².

Question 5

The deceleration time (DT) of the mitral E wave is prolonged in which pattern of diastolic dysfunction?

Accepted Answer

Impaired relaxation (Grade I)

Answer

Impaired relaxation (Grade I diastolic dysfunction) is characterized by a prolonged mitral E-wave deceleration time (>240 ms).

ARDMS Echo - American Registry for Diagnostic Medical Sonography Echocardiography Practice Test