Question

With M-mode echocardiography, asymmetric septal hypertrophy is present when the interventricular septum to posterior wall ratio is:

A. greater than or equal to 0:1
B. greater than or equal to 1:1
C. greater than or equal to 1.2:1
D. greater than or equal to 1.3:1

Answer 1

Asymmetric septal hypertrophy is present when the interventricular septum to posterior wall ratio is greater than or equal to 1.3:1

Step-by-step explanation:

In M-mode echocardiography, asymmetric septal hypertrophy is determined by the interventricular septum to posterior wall ratio, which refers to the thickness of the septum compared to the thickness of the posterior wall of the left ventricle.

Asymmetric septal hypertrophy is present when the interventricular septum to posterior wall ratio is greater than or equal to 1.3:1 (option D).

For example, if the thickness of the interventricular septum is 1.3 times greater than the thickness of the posterior wall, it would indicate the presence of asymmetric septal hypertrophy.