This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'QT prolongation is seen in all, except: \nSelect and explain. \nA. Hypothermia, B. Digitalis toxicity, C. Hypocalcemia, D. Romanowand syndrome', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer is B (Digitalis toxity) QT interval is shoened in digitalis toxity and not prolonged QT interval Is measured from the beginning of Q wave to the end of T wave Q It is the time taken for total ventricular events i.e. depolarization as well as repolarization 2 Normal QT interval should not exceed 42 seconds', 'role': 'assistant'}]