WHEN A PERSON SUFFERS FROM CHEST PAIN, THE DOCTRO IMMEDIATELY TAKES AN ECG. VISIT A DOCTOR AND GET INFORMATION ABOUT ECG . YOU MAY EVEN IOOK UP AN ENCYCLOPAEDIA OR THE INTERNET
ECG test is done first after chest pain, to diagnose the functioning of heart. As ECG tells whether the chest pain has occurred due to heart attack or it is in progress to occur.