#1
Which of the following is a common symptom of aortic stenosis?
Chest pain
Hypertension
Syncope
Polyuria
#2
What is the most common cause of aortic stenosis in developed countries?
Bicuspid aortic valve
Rheumatic heart disease
Aortic dissection
Coronary artery disease
#3
Which valve is primarily affected in aortic stenosis?
Tricuspid valve
Pulmonary valve
Mitral valve
Aortic valve
#4
What is the typical demographic affected by degenerative aortic stenosis?
Children and adolescents
Young adults
Elderly individuals
Middle-aged individuals
#5
What is the mechanism of action of a calcium channel blocker in aortic stenosis?
Decreases afterload
Reduces preload
Increases cardiac contractility
Reduces heart rate
#6
Which murmur is classically associated with aortic stenosis?
Systolic ejection murmur
Diastolic rumbling murmur
Continuous machinery murmur
Pansystolic murmur
#7
Which imaging modality is considered the gold standard for diagnosing aortic stenosis?
Echocardiography
CT angiography
Cardiac MRI
Transesophageal echocardiography
#8
Which Doppler echocardiography finding suggests severe aortic stenosis?
Peak systolic gradient > 50 mmHg
Peak systolic gradient < 20 mmHg
Mean diastolic gradient < 10 mmHg
Mean diastolic gradient > 30 mmHg
#9
Which valve disorder often coexists with aortic stenosis in elderly patients?
Aortic regurgitation
Mitral stenosis
Pulmonary regurgitation
Tricuspid regurgitation
#10
What is the most common symptom of severe aortic stenosis?
Dyspnea on exertion
Palpitations
Peripheral edema
Hemoptysis
#11
What is the hallmark finding on physical examination of aortic stenosis?
Wide pulse pressure
Hypertrophic cardiomyopathy
Delayed carotid upstroke
Quincke's pulse
#12
Which medication should be avoided in patients with severe aortic stenosis?
Beta-blockers
Calcium channel blockers
Angiotensin-converting enzyme (ACE) inhibitors
Diuretics
#13
What is the most common cause of death in patients with untreated severe aortic stenosis?
Pulmonary embolism
Sepsis
Aortic dissection
Heart failure
#14
Which valve replacement approach has shown superiority in reducing mortality compared to surgical aortic valve replacement in certain patient populations?
Transcatheter aortic valve replacement (TAVR)
Biological valve replacement
Mechanical valve replacement
Robotic-assisted valve replacement
#15
Which valvular abnormality is commonly associated with calcific aortic stenosis?
Mitral regurgitation
Pulmonary stenosis
Tricuspid regurgitation
Pulmonary regurgitation