<prompt> Feature of Torsade de pointes is:Wide QRS complexSho QRS complexSho QRS complexSho QTc interval  <response>: Answer is C Prolonged QTc interval The ECG hallmark of torsades depoints is marked QT prolongation. Torsades de pointes or twisting of the points is a specific type of ventricular tachycardia Characteristics of Torsades de pointes Polymorphic QRS complexes that change in amplitude Cycle length giving the appearance of oscillations around the baseline. Marked QT prolongation Q 