Pathophysiology & Management of MI vs. Sudden Cardiac Arrest Core Distinction: · Myocardial Infarction (MI): A perfusion problem—acute coronary occlusion causing ischemia/necrosis. A clinical syndrome with conscious, perfusing patients. · Sudden Cardiac Arrest (SCA): An electrical problem—abrupt cessation of effective cardiac output due to a malignant arrhythmia. A state of circulatory collapse. Key Pathophysiological Link: Acute MI is a critical,reversible cause of SCA, often triggering primary