This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ECG and Arrhythmias 1, Subject name: Medicine
[{'content': 'All the following statements are true regarding given ECG except: \nSelect and explain. \nA. Seen in Hypomagnesemia, B. Seen in hypokalemia, C. Treated with ibutilide, D. Can conve to ventricular fibrillation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 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', 'role': 'assistant'}]