Which of the following structures are seen in the PSAX view at the aortic valve/LA? Aortic valve (AV) Mitral valve (MV) Left ventricular outflow tract (LVOT) Main pulmonary artery (MPA) Tricuspid valve (TV)

In the Parasternal Short Axis (PSAX) view at the level of the aortic valve/left atrium (LA), the following structures can be visualized:

1. Aortic valve (AV): This is the main structure that can be seen in this view. The aortic valve is responsible for controlling the flow of blood out from the left ventricle to the aorta.

2. Mitral valve (MV): This valve can also be seen in this view. The mitral valve controls the blood flow from the left atrium to the left ventricle.

3. Left ventricular outflow tract (LVOT): This is the pathway through which blood leaves the left ventricle. It can be seen just below the aortic valve in this view.

4. Main pulmonary artery (MPA): This structure is not typically seen in the PSAX view at the aortic valve/LA level. The MPA is usually visualized in other echocardiographic views.

5. Tricuspid valve (TV): This valve, which controls the blood flow from the right atrium to the right ventricle, is also not typically seen in the PSAX view at the aortic valve/LA level. It is usually visualized in other views.