There are many advantages and disadvantages of using coal energy to produce electricity. Its advantages and disadvantages are the following: Advantages of using coal to produce electricity: Coal energy is an affordable energy source because of the coalâs stable price compared to other fuel sources; Coal is easy to burn
An ECG can detect abnormalities in your heart's rhythm and certain patterns that suggest portions of the heart may not be getting enough blood flow. The ECG may also show whether you are having a heart attack or find evidence of a previous heart attack. However ECGs are not perfect tests.
Some of the first tests you may undergo include: 1  Electrocardiogram (ECG). This test records the electrical activity of your heart through electrodes attached to your skin. 2  Blood tests. Your doctor may order blood tests to check for increased levels of certain enzymes normally found in heart muscle. 3  Chest X-ray.