MCQ – 89022

Question

A 3-day-old boy delivered at 32 weeks of gestation is experiencing respiratory distress syndrome. The physician detects a heart murmur characteristic of a patent ductus arteriosus, a diagnosis that is confirmed with an echocardiogram. Which embryonic structure is involved in this diagnosis?

A. Left third aortic arch

B.

Right third aortic arch

C.

Left sixth aortic arch

D.

Umbilical arteries

Show Answer

Leave a Reply

%d bloggers like this: