Microbiology Flashcards
endocarditis
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?
fever chills pronounced heart murmur stroke symptoms signs of embolic infection congestive heart failure
symptoms of sub-acute endocarditis?
fatigue, malaise fever night sweats, weight loss cough CHF symptoms glomerulonephritis
clinical signs of endocarditis? (hint: hands)
splinter hemorrhages
osler nodes
janeway lesions
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?
Enterococci
Escherichia
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
