1 MCQs in Medicine for NEET PG
A 58-year-old man with diabetes and hypertension presents to the emergency department with acute severe substernal chest pain and diaphoresis. His blood pressure is 88/54 mmHg, heart rate 112/min, and respiratory rate 28/min. Physical examination reveals an S3 gallop and bilateral crackles at the lung bases. The 12-lead ECG shows the pattern marked **C** in the diagram: ST-segment elevation in lead aVR (2 mm) and lead V1 (1.5 mm), with diffuse ST-segment depression in leads I, II, III, V4, V5, and V6. Troponin I is markedly elevated at 4.2 ng/mL. Which of the following coronary pathologies is MOST likely to produce this ECG pattern and clinical presentation?
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