Ventricular tachycardia is characterized by wide complex tachycardia and?

Ventricular tachycardia (VT) is characterized not only by a wide complex tachycardia but also by atrioventricular (AV) dissociation, which is a primary feature seen in this arrhythmia. In AV dissociation, the atria and ventricles beat independently of each other, meaning that the electrical signals for the atria do not correspond with those for the ventricles. This is significant in VT because while the ventricles are contracting rapidly and causing wide QRS complexes, the atria may be firing at a different rate.

This dissociation can lead to varying rhythm patterns which can be crucial for identifying the arrhythmia's underlying cause and guiding appropriate treatment. In the context of VT, it indicates that the dysfunctional electrical activity is arising in the ventricles, and the atria may not be synchronized with this rapid ventricular activity.

Other options do not accurately describe the features of ventricular tachycardia. For example, ventricular dissociation generally refers to a different concept and is not a common term used in the context of VT. Pulsatile flow is not a characteristic associated with VT, as the rapid heart rate can compromise effective circulation. Similarly, a bradycardic response is not relevant, since VT