Page 344 - ECG dr shamol_Slide
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ST –Segment change
How ST-segment The ST segment is measured from the end of the S wave to the start
measure of the T wave
What is “J” The J point represents the junction where the S wave meets the
isoelectric baseline
What is it indicate The ST segment represents the gap between ventricular
depolarisation and repolarisation
Why ST segment The ST segment is at the baseline because only an even exchange
normally remain in of charges is taking place. That means During this period no
base line additional electrical signals can pass through the myocardium
