Learn about myocardial infarction (heart attack) in this comprehensive nursing lecture covering pathophysiology, ECG interpretation, nursing interventions, complications, and clinical manifestations. Explore the definition, causes, and anatomy of myocardial infarction, focusing on coronary artery disease as a primary factor. Discover common complications such as pericarditis, cardiac rupture, and cardiogenic shock. Recognize key signs and symptoms, including characteristic chest pain, nausea, and anxiety. Examine diagnostic tools like cardiac markers and ECG changes, with emphasis on interpreting ST-segment alterations and T-wave inversions. Gain essential knowledge for NCLEX exam preparation and enhance your ability to provide effective care for patients experiencing acute myocardial infarction.