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
QT prolongation is seen in all, EXCEPT- 
Select and explain. 
A. Hypothermia, B. Digitalis toxicity, C. Hypocalcemia, D. Romano wand syndrome
B: Digitalis toxicity
Answer: B: Digitalis toxicity 
Explanation: Ans. is 'b' i.e Digitalis * QT interval is shortened in digitalis toxicity