A mother brings her six-month-old infant son to the pediatrician’s office. She is concerned because every time her son cries, he turns blue. He was born term, without complications. He has no...

A mother brings her six-month-old infant son to the pediatrician’s office. She is concerned because every time her son cries, he turns blue. He was born term, without complications. He has no significant medical history. On physical exam, he is found to have a loud systolic murmur. An ECHO confirms your diagnosis. You tell his mother that surgery is necessary to correct what cardiac defect?

A. Patent ductus arteriosus

B. Transposition of the great arteries

C. Tetralogy of Fallot

D. Persistent truncus arteriosus