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An echocardiogram (Echo) is one of the most important heart tests used to detect problems early and protect your long-term health. Using painless sound waves, an Echo shows how your heart chambers, valves, and blood flow are working in real time. In this guide, we break down the different types of echocardiograms, why doctors order them, how patients should prepare, and what actually happens during the procedure. We also explain the risks, complications, and warning signs doctors look for. If yo