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Chapter 74. Infective Endocarditis

Which of the following is least likely to develop IE?

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

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

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

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

Which of the following statements is false regarding IE?

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

B. Patients with HACEK organisms present acutely.

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

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

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

A. Janeway lesions

B. Osler nodes

C. Petechiae

D. Splinter hemorrhage

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

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

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

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

D. Petechiae on the abdominal wall

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

A. A preexisting murmur which has now become significantly worse

B. A patient with an endocardial abscess

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

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

Which of the following statements regarding treatment considerations is true?

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

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

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

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