congenital heart disease Reference Libraries
An echocardiogram is a test that, much like an ultrasound, uses sound waves to create a moving image of the heart. The most common type of echocardiogram is performed transthoracic, meaning the image is taken through a probe against the chest. A TTE does not involve radiation and is a very safe procedure. A cardiac sonographer will put a gel on the patient's chest and move the transducer around...
- A person who stands up for something, as contrasted to a bystander who remains inactive.
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