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Difficult QT: Difference between revisions
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* The QT interval ends where the tangent and the baseline cross. | * The QT interval ends where the tangent and the baseline cross. | ||
* The QT interval is the time in milliseconds between the start and end of the QT interval. | * The QT interval is the time in milliseconds between the start and end of the QT interval. | ||
* If the QRS interval exceeds 120 | * If the QRS interval exceeds 120 milliseconds, than some specialists advice to deduct the amount of milliseconds that exceed 120 ms from the QT interval (i.e. if QRS is 140 ms and QT is 480, then 20ms (i.e. 140 - 120ms) should be deducted from the QT interval, yielding 460ms). | ||
{{clr}} | {{clr}} | ||
===QTc is the heart rate corrected QT interval=== | ===QTc is the heart rate corrected QT interval=== | ||
<flash>file=QTc.swf|width=300|height=200|quality=best|align=right|salign=R||bgcolor=#FFF5F5</flash> | <flash>file=QTc.swf|width=300|height=200|quality=best|align=right|salign=R||bgcolor=#FFF5F5</flash> | ||