This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Pathology
[{'content': 'Gross section of myoardium following myocardial infarction is shown. What could the duration following MI? \nSelect and explain. \nA. Immediate MI, B. 2 days, C. 2 weeks, D. Postmoem infarct aefact', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C - This image shows Interventricular wall rupture. Rupture of myocardial tissue can occur in between 4 -7days Post- MI. (Usually 7-10 days) Commonest complication seen POST-MI is Arrhythmia. Specifically, Ventricular fibrillation. Time Post MI Gross Changes Microscopic Changes Clinical Complications < 4 Hours No observable changes No observable changes Arrhythmias, cardiogenic shock, congestive hea failure 4-24 Hours Dark discoloration Coagulative necrosis Arrhythmias 1-3 Days Yellow coloration Neutrophil invasion of infarct Fibrinous pericarditis 4-7 Days Yellow Coloration Macrophage invasion of infarct Rupture of ventricular wall leading to cardiac tamponade, interventricular septum leading to shunt, papillary muscle dysfunction leading to mitral insufficiency 1-3 Weeks Red border begins to form around infarct Granulation tissue with fibroblasts Months White Scar Fibrosis Aneurysm, mural thrombus, Dressler syndrome', 'role': 'assistant'}]