2. Check LVOT velocity signal for flow acceleration

3. Calculate indexed AVA when

a. Height is <135 cm (5′5″)

b. BSA <1.5 m2

c. BMI <22 (equivalent to 55 kg or 120 lb at this height).

4. Evaluate AR severity

5. Evaluate for high cardiac output

a. LVOT stroke volume

b. 2D LV EF and stroke volume

2. Check LVOT velocity signal for distance from valve

3. Calculate indexed AVA when

a. Height is <135 cm (5′5″)

b. BSA <1.5 m2

c. BMI <22 (equivalent to 55 kg or 120 lb at this height).

4. Evaluate for low transaortic flow volume

a. LVOT stroke volume

b. 2D LV EF and stroke volume

c. MR severity

d. Mitral stenosis

5. When EF <55%

a. Assess degree of valve calcification

b. Consider dobutamine stress echocardiography