Question 1

Which of the following best describes the pathophysiological consequence of aortic stenosis on the left ventricle?

Accepted Answer

Increased resistance to outflow, resulting in left ventricular hypertrophy

Question 2

A 65-year-old patient presents with exertional dyspnea, a systolic crescendo murmur at the second right intercostal space, and a slow-rising carotid pulse. Which valvular disorder is most likely?

Accepted Answer

Aortic stenosis

Question 3

Which diagnostic test is considered the gold standard for evaluating valvular heart disease?

Accepted Answer

Echocardiography

Question 4

A holosystolic murmur heard best at the apex and radiating to the axilla is most characteristic of which condition?

Accepted Answer

Mitral regurgitation

Question 5

Which of the following is a common complication of mechanical prosthetic heart valves?

Accepted Answer

Requirement for lifelong anticoagulation therapy

Question 6

A patient with a history of rheumatic fever in childhood now presents with a low-pitched diastolic rumble at the apex, accentuated in the left lateral decubitus position. What is the most likely diagnosis?

Accepted Answer

Mitral stenosis

Question 7

Which heart sound is associated with a non-compliant ventricle and is commonly heard in older adults with heart failure?

Accepted Answer

S3

Question 8

Which of the following best explains why patients with mitral insufficiency are at increased risk for atrial fibrillation and stroke?

Accepted Answer

Left atrial enlargement and turbulent blood flow promote thrombus formation

Question 9

A patient with a history of intravenous drug use presents with signs of right-sided heart failure and a holosystolic murmur at the lower left sternal border. Which valve is most likely affected?

Accepted Answer

Tricuspid valve

Question 10

Which of the following medications is most appropriate to reduce the risk of thrombus formation in a patient with atrial fibrillation due to mitral stenosis?

Accepted Answer

Anticoagulant

Question 11

A patient with hypertrophic cardiomyopathy (HCM) is at increased risk for which of the following complications?

Accepted Answer

Sudden cardiac death due to ventricular dysrhythmias

Question 12

Which of the following best describes the murmur of aortic insufficiency?

Accepted Answer

High-pitched, blowing, decrescendo diastolic murmur

Question 13

Which imaging modality is most sensitive for detecting subtle valvular abnormalities and is performed by inserting a transducer into the esophagus?

Accepted Answer

Transesophageal echocardiography (TEE)

Question 14

A patient with mitral valve prolapse (MVP) is most likely to present with which of the following auscultatory findings?

Accepted Answer

Mid-systolic click followed by a systolic murmur

Question 15

Which of the following is a key reason why bioprosthetic valves are preferred over mechanical valves in some patients?

Accepted Answer

They do not require lifelong anticoagulation therapy

Question 16

A patient with mitral stenosis develops pulmonary edema. Which of the following best explains this finding?

Accepted Answer

Backup of hydrostatic pressure from the left atrium into the pulmonary veins

Question 17

Which of the following is a common cause of tricuspid valve disease in intravenous drug users?

Accepted Answer

Infective endocarditis

Question 18

Which of the following best describes the timing and quality of the murmur in pulmonic stenosis?

Accepted Answer

Harsh, systolic crescendo-decrescendo murmur at the second left intercostal space

Question 19

A patient with a prosthetic heart valve is scheduled for dental work. Which of the following is the most appropriate preventive measure?

Accepted Answer

Prophylactic antibiotics to prevent endocarditis

Question 20

Which of the following best explains why a patient with severe mitral regurgitation may develop symptoms of left-sided heart failure?

Accepted Answer

Regurgitant flow into the left atrium increases pulmonary venous pressure

Valvular Heart Disease: Pathophysiology, Diagnosis, and Treatment

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