Flashcards in Microbiology Deck (17):
infection of endothelial sites in the heart
two types of infective endocarditis? which organsim are associated with each?
acute (staphylococcus aureus) and subacute (streptococcus viridans)
what is transient bacteremia?
temporary or short term bacteremia
symptoms of acute endocarditis?
pronounced heart murmur
signs of embolic infection
congestive heart failure
symptoms of sub-acute endocarditis?
night sweats, weight loss
clinical signs of endocarditis? (hint: hands)
90% of IE affects the (L/R) side of heart.
Left, in either the mitral of aortic valves.
two major causes for right sided infective endocarditis?
tricuspid valve defects
IV Drug use
prosthetic valve endocarditis is associated with which two organisms?
staph epidermidis or staph aureus
IV drug abuse endocarditis is associated with which two organisms?
staph aureus and candida albicans
in the intestinal flora, what are the two organisms associated with IE?
What does HACEK mean to you?
gram negative bacilli associated with peridontitis.
staph epidermidis is coagulase (+/-), (white/yellow) colonies and (beta/non)-hemolytic
staph epidermidis is coagulase negative, white and non-hemolytic.
staphylococcus aureus is gram (+/-) in (clusters/chains), (beta/non) hemolytic, catalase (+/-) and coagulase (+/-)
staphylococcus aureus is gram positive, in clusters, beta hemolytic and catalase and coagulase positive
why is staph bovis important?
could indicate a colorectal cancer
mucin secreting tumors cause sticky deposits and platelet aggregates on valve- emboli