Cardiovascular Medications Quiz
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Questions and Answers

Which chamber does the mitral valve connect?

  • Right atrium and right ventricle
  • Left atrium and right ventricle
  • Right atrium and left ventricle
  • Left atrium and left ventricle (correct)

When does the mitral valve open?

  • During systole
  • At the end of the cardiac cycle
  • At the beginning of the cardiac cycle
  • During diastole (correct)

What is the most common cause of mitral stenosis?

  • Rheumatic fever (correct)
  • Congenital heart defect
  • Hypertension
  • Atherosclerosis

What are the typical characteristics of mitral valve leaflets in patients with mitral stenosis?

<p>Thickened and fused (D)</p> Signup and view all the answers

What is the function of the mitral valve during systole?

<p>Prevents backflow to the left atrium (B)</p> Signup and view all the answers

What is the natural history of mitral stenosis typically like?

<p>Progressive acceleration in later years (D)</p> Signup and view all the answers

Which medication is used for rhythm control in atrial fibrillation?

<p>Amiodarone (C)</p> Signup and view all the answers

What is the primary prophylaxis for the prevention of rheumatic fever?

<p>Treatment of streptococcal pharyngitis (D)</p> Signup and view all the answers

How long does secondary prevention continue in patients with carditis?

<p>10 years (A)</p> Signup and view all the answers

What complication is associated with mitral stenosis?

<p>Pulmonary edema (A)</p> Signup and view all the answers

Which condition is NOT a common cause of mitral regurgitation?

<p>Atrial fibrillation (D)</p> Signup and view all the answers

What causes acute mitral regurgitation?

<p>Mitral valve prolapse (C)</p> Signup and view all the answers

What is the primary etiology of chronic primary mitral regurgitation?

<p>Degenerative mitral valve disease (A)</p> Signup and view all the answers

What is the most common cause of acquired mitral valve disease in the Western world?

<p>Mitral valve prolapse (C)</p> Signup and view all the answers

What is the pathophysiology of chronic decompensated mitral regurgitation?

<p>Progressive dilation of the left ventricle (B)</p> Signup and view all the answers

What is the prognosis of patients with acute regurgitation?

<p>Cardiogenic shock and acute pulmonary edema (B)</p> Signup and view all the answers

What causes MVP (mitral valve prolapse)?

<p>Myxomatous degeneration (A)</p> Signup and view all the answers

What complication can occur due to balloon valvulotomy in mitral stenosis?

<p>Increased left atrial pressures (A)</p> Signup and view all the answers

What is the definitive treatment for mitral regurgitation?

<p>Mitral valve replacement (A)</p> Signup and view all the answers

What is the primary aim of medical treatment for acute primary MR?

<p>To improve forward flow (D)</p> Signup and view all the answers

Which medication is used to reduce preload and the left ventricular volume?

<p>Furosemide (A)</p> Signup and view all the answers

What should not be attempted to alleviate in patients with mitral regurgitation?

<p>Tachycardia (B)</p> Signup and view all the answers

In which condition should cardioversion be considered for patients with mitral regurgitation?

<p>Rapid atrial fibrillation (C)</p> Signup and view all the answers

Which surgical treatment is considered the optimal choice for mitral regurgitation?

<p>Mitral valve repair (D)</p> Signup and view all the answers

What is the mortality rate for patients with acute mitral regurgitation secondary to infarction requiring valve replacement and presenting with severe pulmonary edema?

<p>&gt; 60% (B)</p> Signup and view all the answers

Which complication is not a major complication from chronic regurgitation?

<p>Ruptured chordae tendineae (B)</p> Signup and view all the answers

What type of approach is used for transcatheter mitral valve interventions?

<p>Transseptal approach (C)</p> Signup and view all the answers

What is the primary aim of vasodilators in the management of acute heart failure?

<p>To reduce afterload (B)</p> Signup and view all the answers

Which condition is an indication for surgical treatment of chronic primary MR?

<p>Symptomatic patients irrespective of LV systolic function (C)</p> Signup and view all the answers

Which medication should be used to manage rapid atrial fibrillation secondary to chronic mitral regurgitation?

<p>Digoxin (D)</p> Signup and view all the answers

What is the most common cause of mitral stenosis?

<p>Rheumatic fever (B)</p> Signup and view all the answers

What is the normal area of the mitral valve orifice?

<p>4-5 cm² (A)</p> Signup and view all the answers

What occurs when the valve area is narrowed to less than 2.5 cm²?

<p>Impedes the free flow of blood and increases left atrial pressure (C)</p> Signup and view all the answers

At what stage does critical mitral stenosis occur?

<p>When the opening is reduced to 1 cm² (A)</p> Signup and view all the answers

What is the 10-year survival rate of untreated patients with mitral stenosis?

<p>50-60% (A)</p> Signup and view all the answers

Where is the prevalence of rheumatic fever and mitral stenosis higher?

<p>Developing nations (D)</p> Signup and view all the answers

Which factor contributes to the decrease in the prevalence of mitral stenosis?

<p>Antibiotic treatment of strep throat (A)</p> Signup and view all the answers

What is the gender difference in the prevalence of mitral stenosis?

<p>2-3 times more common in women (A)</p> Signup and view all the answers

Which condition is NOT a cause of mitral stenosis?

<p>Pulmonary tuberculosis (A)</p> Signup and view all the answers

What might be present on physical examination of a patient with stenotic mitral valve?

<p>Palpable systolic thrill (B)</p> Signup and view all the answers

Which symptom is commonly associated with mitral stenosis?

<p>Exertional dyspnea and orthopnea (D)</p> Signup and view all the answers

What might be a consequence of chronic elevation of pulmonary capillary pressure in mitral stenosis?

<p>Decreased stroke volume (B)</p> Signup and view all the answers

What is the diagnostic study of choice for mitral stenosis?

<p>Two-dimensional and Doppler echocardiography (B)</p> Signup and view all the answers

Which imaging technique provides better images of the mitral valve and is a more sensitive way to detect pathology such as valvular vegetations or atrial thrombus?

<p>Transesophageal echocardiography (TEE) (B)</p> Signup and view all the answers

Which characteristic findings are associated with imaging studies of mitral stenosis?

<p>Reduced mitral valve area (MVA) (D)</p> Signup and view all the answers

What is the most accurate noninvasive technique to quantify the hemodynamic severity of mitral stenosis?

<p>Doppler echocardiography (B)</p> Signup and view all the answers

What does an ECG in a patient with significant mitral stenosis and sinus rhythm typically display?

<p>Left atrial enlargement (A)</p> Signup and view all the answers

Which procedure is indicated when a discrepancy exists between Doppler-derived hemodynamics and the clinical status in a symptomatic patient?

<p>Cardiac catheterization (C)</p> Signup and view all the answers

What is the initial procedure of choice for symptomatic patients with moderate-to-severe mitral stenosis?

<p>Percutaneous mitral balloon valvotomy (D)</p> Signup and view all the answers

What intervention is recommended for patients with NYHA FC III-IV symptoms, moderate or severe mitral stenosis, and valve morphology favorable for repair or replacement?

<p>Surgical intervention (B)</p> Signup and view all the answers

What is recommended for patients with moderate or severe mitral regurgitation?

<p>Mitral valve repair or replacement (A)</p> Signup and view all the answers

What does pregnancy cause in patients with mitral stenosis?

<p>Increase in cardiac output (C)</p> Signup and view all the answers

What is the most commonly successful way to convert atrial fibrillation to sinus rhythm?

<p>Brief duration of atrial fibrillation (&lt; 6-12 months) and not severely dilated left atrium (A)</p> Signup and view all the answers

What therapy are medications directed at for mitral stenosis?

<p>Reducing the incidence and severity of symptoms and complications (C)</p> Signup and view all the answers

Which symptom is most likely to be present in patients with chronic mitral regurgitation?

<p>Dyspnea and fatigue progressing to orthopnea and paroxysmal nocturnal dyspnea (A)</p> Signup and view all the answers

What is a common complication associated with left atrial enlargement in patients with chronic mitral regurgitation?

<p>Atrial fibrillation (D)</p> Signup and view all the answers

What is a characteristic physical finding in patients with severe chronic mitral regurgitation?

<p>Apex beat laterally displaced with cardiomegaly (D)</p> Signup and view all the answers

What is the most likely physical examination finding in acute mitral regurgitation?

<p>Late inspiratory crackles and bibasilar fine crackles (D)</p> Signup and view all the answers

What imaging study is used to confirm the diagnosis of mitral regurgitation?

<p>Two-dimensional echocardiography (B)</p> Signup and view all the answers

What is a common finding in the electrocardiogram (ECG) of patients with chronic mitral regurgitation?

<p>Evidence of left ventricular hypertrophy and left atrial enlargement (B)</p> Signup and view all the answers

What is a common symptom in patients with MVP syndrome?

<p>Atypical chest pain and anginal-type pain (A)</p> Signup and view all the answers

Which imaging study provides a better estimate of the severity of damage in mitral regurgitation?

<p>Transesophageal echocardiography (A)</p> Signup and view all the answers

What is a common finding in the electrocardiogram (ECG) of patients with MVP?

<p>ST- and T-wave changes with T-wave inversions in the inferior leads (C)</p> Signup and view all the answers

What is a characteristic physical finding in patients with MVP syndrome?

<p>Presence of mid-to-late systolic click and a late systolic murmur (C)</p> Signup and view all the answers

What is the most likely physical examination finding in chronic mitral regurgitation?

<p>Constant systolic ejection murmur with a third heart sound (C)</p> Signup and view all the answers

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