Centers of Excellence Medical Services Surgical Services Critical Care Services Emergency Services Rehabilitation Services Support Services Le Bonheur Community Outreach Summer Camps for Kids Home  » Our Services  » Centers of Excellence  » Cardiac Institute  » Common Diagnoses and Treatments Atrial/Septal Defects     One child in about 1,500 is born with a relatively common heart defect called an atrial septal defect (ASD) which results in a hole between the two upper chambers Of the heart. Cardiopulmonary Stress Test     Test to measure the function of the lungs and heart. Graded exercise test     Test to measure heart function during exercise activities Syncope / Tilt Table Test     Test to see what is causing your child to pass out or faint. contact us privacy and patient rights disclaimer newsroom our centers of excellence   Le Bonheur Children's Medical Center is a leading children's hospital in the Mid South, providing pediatric care to children from 95 counties in six states. 50 N. Dunlap Street, Memphis, Tennessee 38103 • (901) 287-KIDS