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    what is the significance of negative blood cultures when diagnosing endocarditis?
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    (Original post by ScreamYourHeartOut)
    what is the significance of negative blood cultures when diagnosing endocarditis?
    "Culture-positive vs. culture-negative

    Infective endocarditis may also be classified as culture-positive or culture-negative.

    Culture-negative endocarditis can be due to micro-organisms that require a longer period of time to be identified in the laboratory, such organisms are said to be fastidious because they have demanding growth requirements, or due to absence of an organism as in marantic endocarditis. Some pathogens responsible for culture-negative endocarditis include Aspergillus species, Brucella species, Coxiella burnetii, Chlamydia species, and HACEK bacteria. Another possible reason for culture negativity, even with the more typical pathogens, is prior antibiotic treatment."

    From http://en.wikipedia.org/wiki/Infective_endocarditis . But it might also mean it's not infective endocarditis?
 
 
 
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