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
[{'content': 'What is diagnosis of fresh myocardial infarction in ECG- \nSelect and explain. \nA. QT interval prolongation, B. P mitrale, C. ST segment elevation, D. ST segment depression', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ref: R. Alagappan Manual for Medicine 4th Edition pg no:184 ECG * May be normal initially and hence serial ECGs must be taken. * ST elevation and T-wave inversion with pathological Q-waves are typically seen in leads adjacent to the infarcted segment of myocardium. * Reciprocal ST depression or T-wave inversion in opposite leads. * A non-Q-wave infarct may occur and has a high risk of moality (as they are prone to develop dangerous arrhythmias and recurrent angina).', 'role': 'assistant'}]