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: Unknown
[{'content': 'QT prolongation seen in all of the following conditions except \nSelect and explain. \nA. Digitalis toxicity, B. Hypokalemia, C. Hypocalcemia, D. Jervell syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Short QT interval seen in\n\nDigoxin toxicity\nHypercalcemia.', 'role': 'assistant'}]