The Nurse Is Assessing a Child and Hears a Widely

The nurse is assessing a child and hears a widely split S2, which is not affected by the respiratory pattern. The physician verifies the finding and orders a chest X-ray, which shows an enlarged heart. An echocardiogram is ordered, which shows the defect. The finding by the nurse is a classic murmur found in which of the following cardiac defects?

A) atrial septal defect
B) tetralogy of Fallot
C) patent ductus arteriosus (PDA)
D) transposition of the great arteries (TGA)