Echocardiogram
An echocardiogram (echo) is a test that helps doctors evaluate the strength and function of a child's heart. The test uses sound waves to create a picture of the heart.
![Echocardiogram](/images/default-source/site-library/022_echo_photoshop.png?sfvrsn=8093658a_1)
In preparation, a clear, cold jelly is placed on the chest. The person doing the test (technician) will move a small round handle (transducer) across the chest that sends sound waves to the heart. Having an echo does not hurt or have side effects.