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.
An echocardiogram may be done to further evaluate signs or symptoms of these and other conditions. The echo can detect problems with the heart such as enlargement, abnormalities in motion of the heart wall, blood clots, and heart valve abnormalities. It also measures the strength of the heart muscle (ejection fraction).The echo is more accurate than an ECG, but also more expensive.