Tetralogy of Fallot Topic Guide

Tetralogy of Fallot Tetralogy of Fallot: Tetralogy of Fallot is a congenital heart defect that is the most common among newborns who have heart defects. Abnormalities in all four chambers of the heart ultimately lead to a failure to fully oxygenate the blood. In sever cases, the baby may turn blue, but other cases may present more subtle symptoms including slow growth, shortness of breath and easy tiring.
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