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
What is diagnosis of fresh myocardial infarction in ECG 
Select and explain. 
A. QT interval prolongation, B. P mitrale, C. ST segment elevation, D. ST segment depression
C: ST segment elevation
Answer: C: ST segment elevation 
Explanation: 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 mortality (as they are prone to develop dangerous arrhythmias and recurrent angina).