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The QRS duration indicates how fast the ventricles depolarize. | The QRS duration indicates how fast the ventricles depolarize. | ||
The ventricles depolarize normally within 0.10 seconds. When this is longer than 0.12 seconds, this is a '''[[conduction delay| conduction delay (Left | The ventricles depolarize normally within 0.10 seconds. When this is longer than 0.12 seconds, this is a '''[[conduction delay| conduction delay]] ([[LBBB|Left bundle branch block]] or [[RBBB|Right bundle branch block]]'''. | ||
==The QT interval== | ==The QT interval== |