All the following statements are true regarding given ECG except:: (A) Seen in Hypomagnesemia, (B) Seen in hypokalemia, (C) Treated with ibutilide, (D) Can conve to ventricular fibrillation
Answer is C. ECG shows Polymorphic ventricular tachycardia ( Torsades de pointes). Uncontrolled Polymorphic VT may precipitate into V. fibrillation. Causes of Polymorphic VT ( Torsades de pointes): Hypomagnesemia Hypokalemia Hypocalcemia SAH Intracranial Hemorrhage Hereditary long QT syndrome. Note Chemical cardioversion: IV Ibutilide is done in Atrial fibrillation and atrial flutter and not in VT