If your child has signs of TGA after birth, a pediatric cardiologist or neonatologist will check him or her. A pediatric cardiologist is a doctor with special training in treating heart problems in babies and children. A neonatologist is a doctor with special training in treating problems in newborns. These doctors will be part of your baby’s heart care team.
Your child’s doctor may do tests to confirm the diagnosis. The tests your child has depends on his or her age and condition, and the doctor’s preferences.
For this test, a probe is placed on your child's finger or toe. It measures the level of oxygen in the blood, if it is below a certain level, this may be a sign of TGA.
A chest X-ray shows the size and shape of the heart and lungs.
This test records the electrical activity of the heart. It also shows abnormal rhythms (arrhythmias or dysrhythmias) and spots heart muscle stress.
An echo uses sound waves to make a moving picture of the heart and heart valves. This test may show TGA.
Cardiac catheterization (cardiac or heart cath)
A cardiac catheterization gives detailed information about the structures inside the heart. In this test, a small, thin, flexible tube called a catheter is put into a blood vessel in your child’s groin. Then the healthcare provider guides it to your child’s heart. Your child’s healthcare provider will inject your child with contrast dye to see his or her heart more clearly. This test measures your child’s blood pressure and oxygen in the 4 chambers of the heart and the pulmonary artery and aorta. Your child will get medicine to help relax and prevent pain (sedation).