Infective Endocarditis Definition and Overview

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Questions and Answers

What does the term 'Endocarditis' refer to?

  • Inflammation of the inner layer of the heart (correct)
  • Infection of the outer layer of the heart
  • Inflammation of the lung tissue
  • Infection of the blood vessels

Which of the following is true about Infective Endocarditis?

  • It affects the outer layer of the heart
  • It is common in non-cardiac related illnesses
  • It is a life-threatening infection caused by microbes on the heart's endothelial surface (correct)
  • It is a harmless infection caused by viruses

What part of the heart do microbes settle on in Infective Endocarditis?

  • Myocardium
  • Pericardium
  • Endothelial surface (correct)
  • Epicardium

Which term best describes the inflammation of lung tissue?

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

Why is Infective Endocarditis considered serious?

<p>It poses a life-threatening risk due to its infection on heart structures (A)</p> Signup and view all the answers

Which of the following vascular phenomena is characterized by small erythematous or hemorrhagic macules on the palms and soles?

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

Which vascular event is associated with the formation of blood clots that travel through the bloodstream and block arteries?

<p>Major arterial emboli (C)</p> Signup and view all the answers

Which vascular condition can lead to localized weakness in blood vessel walls and potentially rupture?

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

What is a common feature of both septic pulmonary infarcts and intracranial hemorrhage?

<p>They involve blockage of arteries by clots (B)</p> Signup and view all the answers

Which vascular issue is characterized by bleeding in the white part of the eye due to rupture of small blood vessels?

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

Why can eradication be difficult?

<p>High concentration of microbes buried deep within the vegetation (D)</p> Signup and view all the answers

What factor can lead to the reduction of microbial activity within the vegetation?

<p>Interference of fibrin and white blood cells (B)</p> Signup and view all the answers

When does fever typically begin to disappear after starting treatment?

<p>1-3 days (A)</p> Signup and view all the answers

Which of the following does not contribute to the difficulty in eradicating microbes from vegetation?

<p>Increased sunlight exposure (D)</p> Signup and view all the answers

What effect do white blood cells have on antibiotics according to the text?

<p>Decrease antibiotic effectiveness (D)</p> Signup and view all the answers

Which type of bacteria is most commonly associated with infective endocarditis (IE)?

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

What percentage of IE cases are associated with Staphylococcus?

<p>30% (D)</p> Signup and view all the answers

Which side of the heart is usually affected by Staphylococcal IE?

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

Which bacterial group is known to be the most common cause of community-acquired and native infective endocarditis?

<p>Viridans Group Streptococci (VGS) (C)</p> Signup and view all the answers

Where is Viridans Group Streptococci (VGS) normally found in the body?

<p>Oral cavity and gastrointestinal tract (A)</p> Signup and view all the answers

Which cardiac condition is associated with a calcified aortic stenosis?

<p>Bicuspid valve disease (B)</p> Signup and view all the answers

When should antibiotic prophylaxis be considered for patients with nonvalvular cardiovascular devices?

<p>Only for specific cases like incision and drainage of abscesses (D)</p> Signup and view all the answers

Which type of patients should receive prophylaxis for residual valve leaks after device placement?

<p>Patients with atrial septal defects (B)</p> Signup and view all the answers

What condition warrants prophylaxis for patients undergoing incision and drainage of abscesses?

<p>Mitral valve prolapse with regurgitation (D)</p> Signup and view all the answers

In which situation is antibiotic prophylaxis not suggested for patients with nonvalvular cardiovascular devices?

<p>In cases of coronary artery bypass graft surgery (B)</p> Signup and view all the answers

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