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Conduction: Difference between revisions
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==The QT interval== | ==The QT interval== | ||
[[File:Tangent QT.png|thumb|400px| The QT interval starts at the onset of the Q wave and ends where the tangent line for the steepest part of the T wave intersects with the baseline of the ECG. ]] | [[File:Tangent QT.png|thumb|400px| The QT interval starts at the onset of the Q wave and ends where the tangent line for the steepest part of the T wave intersects with the baseline of the ECG. ]] | ||
'''The normal QTc interval''' | '''The normal QTc (corrected) interval''' | ||
The QT interval indicates how fast the ventricles are repolarized, becoming ready for a new cycle. | The QT interval indicates how fast the ventricles are repolarized, becoming ready for a new cycle. | ||
The normal value for QTc | The normal value for QTc is: '''below 450ms for men and below 460ms for women'''. <cite>aha2</cite> | ||
If QTc is < 340ms [[Short_QT_Syndrome|short QT syndrome]] can be considered. | If QTc is < 340ms [[Short_QT_Syndrome|short QT syndrome]] can be considered. | ||