Cardiology MCQs

Which ECG finding is characteristic of a previous myocardial infarction?

Which component of the blood is primarily responsible for carrying oxygen?

What is the role of the coronary arteries?

What is the primary action of diuretics in heart failure management?

Which diagnostic test is used to visualize the coronary arteries?

In atrial fibrillation, what is the primary mechanism for stroke?

What is the target INR range for a patient on warfarin therapy for non-valvular atrial fibrillation?

Which procedure is used to open narrowed coronary arteries?

What is the main symptom of aortic stenosis?

Which condition is a result of narrowed heart valves?

Which medication is commonly used to treat high cholesterol?

Which heart sound is associated with the closure of the aortic and pulmonary valves?

Which of the following can result in a decreased ejection fraction?

What is the primary function of the sinoatrial node?

What is the common side effect of beta-blockers?

Which valve is located between the left atrium and left ventricle?

Which of the following conditions is indicated by elevated troponin levels?

What does the QRS complex on an ECG represent?

A 55-year-old male patient presents with chest pain on exertion and shortness of breath. An ECG shows ST depression. What is the most likely diagnosis?

What is the initial drug of choice for the treatment of stable angina?

What is the primary mechanism of action of calcium channel blockers in hypertension?

Which electrolyte abnormality is most likely in a patient on diuretics?

Which of the following is a common symptom of myocardial infarction?

What is the primary goal of thrombolytic therapy in acute myocardial infarction?

Which of the following is a common side effect of loop diuretics?

Which is the most characteristic ECG finding in atrial fibrillation?

Which structure is primarily responsible for the conduction from atria to ventricles?

What is the main cause of stable angina?

Which heart chamber receives oxygenated blood from the lungs?

For a patient with acute heart failure, which of the following management options is most appropriate?

What is the primary risk factor for developing atherosclerosis?

What is the most common cause of heart failure in the UK?

What is the most common cause of sudden cardiac death in athletes under 35 years?

What is the primary effect of nitroglycerin in treating angina?

Which condition is characterized by a thickening of the heart muscle?

Which imaging modality is first-line for the diagnosis of heart failure?

Which medication is commonly used to treat atrial fibrillation?

Which condition involves inflammation of the heart's inner lining?

What is the main cause of pulmonary edema in heart failure?

Which of the following is a sign of left-sided heart failure?

What condition is characterized by fluid accumulation around the heart?

Which electrolyte imbalance can lead to cardiac arrhythmias?

Which test is most commonly used to diagnose arrhythmias?

What is the primary benefit of using ACE inhibitors in heart failure?

Which condition is associated with a diastolic decrescendo murmur best heard at the left sternal border?