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Chapter 74. Infective Endocarditis

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Which of the following is least likely to develop IE?

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A. 24-year-old male who has a history of IVDU

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B. 63-year-old female with a prosthetic tricuspid valve

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C. 32-year-old male with blood cultures positive for S. aureus for 4 days

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D. 41-year-old female recently discharged for a mastectomy

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Which of the following statements is false regarding IE?

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A. Coagulase-negative staphylococci are the predominant organism causing PVE.

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B. Patients with HACEK organisms present acutely.

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C. IVDUs are at an increased risk of developing IE caused by less common organisms.

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D. A patient is more likely to present as a culture-negative if recently received antimicrobials.

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Which of the following peripheral manifestations causes painless plaques when it occurs?

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A. Janeway lesions

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B. Osler nodes

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C. Petechiae

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D. Splinter hemorrhage

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Which of the following signs/symptoms would likely be from a patient presenting with Streptococcus mitis IE?

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A. Fevers of 102°F (38.9°C) and chills

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B. Patient complaints of not feeling well for the past week

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C. A weight loss of 15 pounds (6.8 kg) in past month

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D. Petechiae on the abdominal wall

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Which of the following is considered a major criteria in the diagnosis of IE?

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A. A preexisting murmur which has now become significantly worse

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B. A patient with an endocardial abscess

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C. A positive blood culture with Klebsiella pneumoniae in two separate blood cultures drawn 12 hours apart

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D. A patient who has a history of IV drug abuse for the past 5 years

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Which of the following statements regarding treatment considerations is true?

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A. Combination therapy is needed against all gram-positive bacteria.

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B. Antimicrobial efficacy is affected by the amount of bacteria within the vegetation.

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C. Surgery is only required in patients who ...

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