- ECG at rest – the ST segment of the ECG is the most important part of the ECG in terms of assessing for ischaemic changes
- After 3 minutes exercise – shows increase heart rate
- Peak exercise – you can see definite ST-segment depression of >=2mm which represents positive ECG changes. In Marys case these changes are associated with chest pain in stage 2 of the Bruce protocol at 4 and a half minutes. This represents inducible ischaemia (reduced blood flow through one of the coronary arteries during exercise) and therefore a positive test.
- 1 minute after exercise – on resting, the ECG changes resolve this demonstrates that the ischaemia is reversible (resolves on resting) and therefore allows a diagnosis of Angina.
Page last reviewed: 03 Jun 2020
