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Multiple Choice

V tach is associated with which part of the heart?

Ventricular tachycardia is a rhythm that starts in the ventricles, not above them. Because the impulse originates in ventricular tissue, the activation of the ventricles occurs abnormally through the muscle, producing a rapid rate—often over 100 beats per minute—with wide, bizarre QRS complexes on the ECG. P waves may be hidden, preceding, or dissociated from the QRS complexes, reflecting that atrial activity is not driving the ventricle in this rhythm. In contrast, tachycardias arising from the atria or the AV node typically have narrower QRS complexes because activation uses the normal conduction system. So V tach is associated with the ventricles.

Ventricular tachycardia is a rhythm that starts in the ventricles, not above them. Because the impulse originates in ventricular tissue, the activation of the ventricles occurs abnormally through the muscle, producing a rapid rate—often over 100 beats per minute—with wide, bizarre QRS complexes on the ECG. P waves may be hidden, preceding, or dissociated from the QRS complexes, reflecting that atrial activity is not driving the ventricle in this rhythm. In contrast, tachycardias arising from the atria or the AV node typically have narrower QRS complexes because activation uses the normal conduction system. So V tach is associated with the ventricles.