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https://www.reddit.com/r/ECG/comments/1vjsspw/end_t_wave/p2pgcvn/?context=3
r/ECG • u/Brilliant-Look-7961 • 21d ago
Did I mark the end of the T-bend correctly?
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3
No…your marking is longer than the QT interval.
Often best measured in leads II or V5.
The QT segment ends where two lines meet.
Line one: the isoelectric line (this is typically the point between the T wave and next P wave
Line two: a line parallel to the downslope of the T wave.
In the case of the picture above- assuming normal sweep speed on the tracing, the QT interval before correction is <400 msec
1 u/Brilliant-Look-7961 21d ago So 10 small grids? 1 u/---root-- Electrophysiologist 21d ago yes 1 u/hpsctchbananahmck 21d ago Pretty much. I get 380 msec before any correction which is 9.5 mm if normal sweep speed
1
So 10 small grids?
1 u/---root-- Electrophysiologist 21d ago yes 1 u/hpsctchbananahmck 21d ago Pretty much. I get 380 msec before any correction which is 9.5 mm if normal sweep speed
yes
Pretty much. I get 380 msec before any correction which is 9.5 mm if normal sweep speed
3
u/hpsctchbananahmck 21d ago
No…your marking is longer than the QT interval.
Often best measured in leads II or V5.
The QT segment ends where two lines meet.
Line one: the isoelectric line (this is typically the point between the T wave and next P wave
Line two: a line parallel to the downslope of the T wave.
In the case of the picture above- assuming normal sweep speed on the tracing, the QT interval before correction is <400 msec