ECG , not a best guide

ECG is not the best guide for diagnosis of heart disease. For example, a person may have a normal ECG but he may still have a cardiac problem. It should be noted that each test has its own limitations. Hence, it is worthwhile to look at all the symptoms that a person has and then to diagonise his cardiac condition. At times, it may be worthwhile to look at all the symptoms that a person has and then to diagonise his cardiac condition. At times, it may be worthwhile to observe a patient for 24 hours because in a single examination certain things may be missed or may not be notices. For this purpose, usually a person need not be hospitalised. However, sometimes, it may be necessary to hospitalise a person for observation, particularly, when he has pain but his ECG or Electrocardiogram is normal.