This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Medicine
Torsades de pointes causes? 
Select and explain. 
A. EideQRS, B. Sho QRS, C. Wide QT, D. Sho QT
C: Wide QT
Answer: C: Wide QT 
Explanation: Wide or long QT interval is seen with it. Torsades de pointes is a specific form of polymorphic ventricular tachycardia in patients with a long QT interval. It is characterized by rapid, irregular QRS complexes, which appear to be twisting around the electrocardiogram (ECG) baseline. Reference: Harrison 20th edition pg 1554