An ECG test measures the electrical signals in your heart to display your heart’s activity pattern. There are can be a number of issues detected via this method
Arythmias where your heart beats too fast, too slow or irregularly. Atrial Fibrillation is one form of irregular pattern
Evidence of a previous heart attack
The results are called an ‘Electrocardiogram’ and an your cardiac consultant reviews the trace produced. Only after they have checked your reading in detail will it be compiled in your detailed results report.