best cardiac doctors near me A TMT (Treadmill Test) or cardiac stress test evaluates heart health during physical exertion, primarily to diagnose Coronary Artery Disease (CAD), check blood flow, detect abnormal rhythms (arrhythmias), assess heart's pumping efficiency, and determine fitness levels, especially for people with symptoms like chest pain, shortness of breath, or dizziness, or those at high risk for heart issues. Key Uses of a TMT Test: Detecting Coronary Artery Disease (CAD): Identifies blockages in arteries that only appear during stress. Diagnosing Arrhythmias: Uncovers irregular heartbeats that don't show up at rest. Assessing Blood Flow: Checks if the heart gets enough oxygen-rich blood during activity. Evaluating Symptoms: Pinpoints the cause of chest pain, dizziness, or shortness of breath during exercise. Determining Exercise Capacity: Measures physical fitness and the heart's ability to handle exertion.