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Self-Assessment Questions

Internal Medicine

Subacute Bacterial Endocarditis: Review Questions

Mark A. Marinella, MD, FACP, CNSP

Dr. Marinella assistant clinical professor, Department of Internal Medicine, Wright State University School of Medicine, Dayton, OH.



Choose the single best answer for each question.

1. Subacute bacterial endocarditis (SBE) may have clinical manifestations similar to all of the following EXCEPT:
  1. Systemic vasculitis
  2. Atheroembolism
  3. Metastatic malignancy
  4. Obstructive sleep apnea
  5. Cardiac myxoma
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2. Which of the following pathogens is the most common cause of SBE?

  1. Staphylococcus epidermidis
  2. Viridans streptococci
  3. Candida albicans
  4. Enterococcus faecalis
  5. Proteus mirabilis
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3. A 44-year-old homeless man with a history of heroin abuse presents with a 1-week history of fevers, chills, and hemoptysis. Chest radiography reveals multiple cavitary lung masses. All of the following statements regarding this patient’s probable diagnosis are correct EXCEPT:

  1. The most likely etiology is Staphylococcus aureus
  2. Operative repair is always needed
  3. Some patients can be treated with a 2-week course of antibiotics
  4. A systolic murmur that increases with inspiration may be noted
  5. Pleuritic chest pain and hemoptysis may be present
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  4. Which of the following drugs is the preferred treatment option for patients with SBE due to viridans streptococci?
  1. Penicillin
  2. Vancomycin
  3. Erythromycin
  4. Aztreonam
  5. Itraconazole
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5. All of the following are components of general treatment principles of SBE EXCEPT:

  1. Intravenous (IV) therapy
  2. Prolonged duration
  3. Use of a bacteriostatic antibiotic
  4. Synergistic antibiotics
  5. Determination of antibiotic susceptibility profiles
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