This virtual assistant provides information on three key procedures for evaluating cardiovascular health: electrocardiogram (ECG), echocardiogram, and coronary angiography. It explains how the ECG measures the heart's electrical activity to detect issues with the heart's rhythm, how the echocardiogram uses sound waves to obtain images of the heart and its structures, and how coronary angiography allows the visualization of coronary arteries to detect blockages. Additionally, it provides details on preparation for these procedures, expected results, and potential treatment options. It is aimed at both patients undergoing these tests and healthcare professionals interested in better understanding these diagnostic procedures.