Podcast #2 - A congenital heart defect

A 6-week-old girl is brought to the GP for a well-child examination. Her parents have no concerns about her breastfeeding habits and growth. She is at the 30th percentile for length and 35th percentile for weight. Examination shows a blowing holosystolic murmur along the left sternal border. Which of the following is the most likely diagnosis? Atrial septal defect Coarctation of the aorta Patent ductus arteriosus Ventricular septal defect Functional murmur