THE BEST CARDIOLOGISTS IN YELAHANKA
A systematic description of ECGs
The following eight short steps will enable most ECGs to be described correctly:
1 Check the paper speed and calibration markers.
2 Measure or estimate the heart rate.
3 Estimate the rhythm.
4 Look for P waves.
5 Measure the PR interval.
6 Examine the QRS complex.
7 Check the ST segment.
8 Measure the T wave.
ECG interpretation should always be as restrained as practicable, taking into account the
clinical context where known and comparison with previous tracings where possible. The possibility
of Prinzmetal’s electrocardiographic heart disease must always be borne in mind—that
is, do not assume that an abnormal ECG always means heart disease.2.