What are the ways to improve maternal health?

Obstruction of blood flow from the right ventricle

PS refers to an obstruction of blood flow from the right ventricle.Option A: Truncus arteriosus involves a single vessel arising from both ventricles.Option D: Total anomalous pulmonary venous communications involve the return of blood to the heart without entry into the left atrium and obstruction of blood flow from the left ventricle.