Cardiology Quiz #26: Ischemic Heart Disease

1. A 55-year-old man with a history of smoking and hypertension presents to the emergency department with severe chest pain that began 30 minutes ago. An ECG shows ST-segment elevation in leads II, III, and aVF. Which of the following coronary arteries is most likely occluded? 

Question 1 of 5

2. A 60-year-old woman with a history of type 2 diabetes mellitus presents to her primary care physician complaining of shortness of breath and fatigue on exertion. She denies any chest pain. Which of the following best explains why this patient does not experience chest pain despite having ischemic heart disease? 

Question 2 of 5

3. A 45-year-old man with no significant past medical history collapses while running a marathon. He is brought to the emergency department where an ECG reveals ST-segment elevation in the anterior leads. Cardiac enzymes are elevated. Which of the following risk factors is most commonly associated with this condition in a patient of his age and background? 

Question 3 of 5

4. A 50-year-old man presents to the clinic with chest pain that occurs during his morning walks and resolves with rest. He has a history of hyperlipidemia and smoking. A stress test is performed, during which the patient develops chest pain and the ECG shows ST-segment depression. Which of the following is the most likely diagnosis? 

Question 4 of 5

5. A 70-year-old man with a history of coronary artery disease is admitted to the hospital with chest pain lasting for more than 2 hours. His troponin levels are elevated, and an ECG shows ST-segment elevation. He undergoes percutaneous coronary intervention (PCI). Which of the following medications is most crucial to administer before the procedure to prevent further thrombotic events? 

Question 5 of 5


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