Which of the following is true regarding ventricular tachycardia?

Ventricular tachycardia (VT) is characterized by specific features on an electrocardiogram (ECG), particularly the morphology of the QRS complexes. The statement regarding multifocal wide QRS complexes accurately reflects a potential presentation of VT.

In some cases, VT can appear with wide QRS complexes due to the origin of the electrical impulses from the ventricles rather than the atria. This results in a slower conduction through the ventricular myocardium, which is why the QRS complexes are wider than those seen in normal sinus rhythm. Additionally, multifocality refers to the presence of different shapes or patterns of wide QRS complexes that arise from various ectopic foci within the ventricles. This can occur in certain forms of VT, indicating that it is more complex and potentially more dangerous than a single focal VT.

Regarding the other statements, narrow QRS complexes typically suggest a supraventricular origin rather than ventricular, meaning that VT is not characterized by narrow QRS complexes. Moreover, not all forms of VT are perfusing, as some may be non-perfusing and lead to hemodynamic instability. Lastly, VT can progress to ventricular fibrillation (V-fib), particularly if it is sustained or if there