An ECG is often used alongside other tests to help diagnose and monitor conditions affecting the heart.
It can be used to investigate symptoms of a possible heart problem, like:
- chest pain
- suddenly noticeable heartbeats (palpitations)
- dizziness
- shortness of breath
For an ambulatory ECG, the ECG machine will store the information about your heart electronically, which can be accessed by a doctor when the test is complete.