What tests show heart blockage?

As a medical professional with expertise in cardiology, I can provide you with information on the diagnostic tests that are commonly used to detect heart blockages. Here's a detailed explanation of each test: 1. Electrocardiogram (ECG): This test records the electrical activity of the heart, which can reveal abnormalities in heart rhythm or damage to the heart muscle that might suggest a blockage. 2. Echocardiogram: An echocardiogram uses sound waves to create images of the heart's structure and function, which can help identify areas of the heart that are not receiving enough blood due to a blockage. 3. Stress Test: During a stress test, your heart rate and blood pressure are monitored while you exercise or are given medication to simulate exercise. This can help doctors see how well your heart handles stress and if there are any signs of decreased blood flow due to blockages. 4. Cardiac Catheterization or Angiogram: This is a more invasive procedure where a thin, flexible tube called a catheter is inserted into a blood vessel and guided to the heart. Dye is then injected, allowing doctors to see the coronary arteries on an X-ray and identify any blockages. 5. Heart Scan: Also known as a myocardial perfusion scan, this non-invasive test can show how well blood flows to the heart muscle and can identify areas with reduced blood flow due to blockages.

He or she may suggest one or more diagnostic tests as well, including:Electrocardiogram (ECG). An electrocardiogram records electrical signals as they travel through your heart. ... Echocardiogram. ... Stress test. ... Cardiac catheterization or angiogram. ... Heart scan.