USMLE Forum Archives - USMLE Step 3 - SABE
SABE
bingousmle - 07-26-10 07:18
A 75-year-old patient presents with fevers and wasting. He describes fatigue and malaise over the past several months and is concerned that he has been losing weight. examination, he is noted to have a low-grade fever and a soft diastolic heart murmur is appreciated.
Laboratory tests reveal a normocytic, normochromic anemia. Three separate blood cultures grow Cardiobacterium hominis. Which of the following statements is true about this patient’s clinical condition?
A. Antibiotics are not likely to improve his condition.
B. Echocardiogram will likely be normal.
C. He has a form of endocarditis with a high risk of emboli.
D. He will likely need surgery.
E. The positive blood cultures are likely a skin contaminant
bingousmle - 07-26-10 07:18
A 75-year-old patient presents with fevers and wasting. He describes fatigue and malaise over the past several months and is concerned that he has been losing weight. examination, he is noted to have a low-grade fever and a soft diastolic heart murmur is appreciated.
Laboratory tests reveal a normocytic, normochromic anemia. Three separate blood cultures grow Cardiobacterium hominis. Which of the following statements is true about this patient’s clinical condition?
A. Antibiotics are not likely to improve his condition.
B. Echocardiogram will likely be normal.
C. He has a form of endocarditis with a high risk of emboli.
D. He will likely need surgery.
E. The positive blood cultures are likely a skin contaminant
The correct answer and explanation will be available after you answer.
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#3
Re: SABE
bingousmle - 07-27-10 01:24 My answer is: c.
SABE responds well to antibiotics, lesions can be detected on echocarddiography, no need for surgery the regimen of choice is IV ceftriaxone
#4
Re: SABE babbu5508 - 07-27-10 03:09 My answer is: a.
Cardiobacterium hominis is a Gram-negative rod commonly grouped with other bacteria into the HACEK group. It is one of several bacteria normally present in the respiratory tract. However, it may also rarely cause endocarditis
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