Feature of Torsades de pointes is?: (A) Normal P waves, (B) Sho QRS complex, (C) Prolonged QTc interval, (D) Sho QTc interval
Answer is C. Torsades de pointes/Polymorphic V. Tachycardia-Prolonged QTc interval QTc=''C'' means corrected T wave,as it does not end immediately. T wave goes in slight gradual slope, so we exactly cannot pin point end of the T wave. So to pin point end of T wave ,mathematical scenario called as QTc is used