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
Congenital long QT syndrome can lead to - 
Select and explain. 
A. Complete hea block, B. atrial fibrillation, C. Acute myocardial infarction., D. Recurrent ventricular tachycardia.
D: Recurrent ventricular tachycardia.
Answer: D: Recurrent ventricular tachycardia. 
Explanation: Long QT syndrome (LQTS) is a rare congenital and inherited or acquired hea condition in which delayed repolarisation of the hea following a heabeat increases the risk of episodes of torsades de pointes (TdP, a form of irregular heabeat that originates from the ventricles ). These episodes may lead to fainting and sudden death due to ventricular fibrillations . Episodes may be provoked by various stimuli Ref Harrison 20th edition pg 1445