Fetal Echocardiography Practice Test 2026 – The Complete Study Guide to Master Your Certification!

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Which statement is NOT a characteristic finding of hypoplastic left heart syndrome?

The aorta is typically small and hypoplastic.

The left ventricle is hypoplastic.

The right ventricle must support systemic circulation.

There is a normally functioning left ventricle with normal size.

In hypoplastic left heart syndrome the left-sided structures are underdeveloped, so the left ventricle is small and often nonfunctional, and the aorta may be hypoplastic. Because the left heart can’t pump blood to the body, the right ventricle assumes the role of delivering systemic circulation, typically via a shunt like a patent ductus arteriosus that maintains systemic flow early on.

Therefore, describing a normally functioning left ventricle with normal size does not fit HLHS. The other statements—small aorta, hypoplastic left ventricle, and the right ventricle supporting systemic circulation—are consistent with HLHS.