Microbiology Flashcards Preview

CPR Midterm > Microbiology > Flashcards

Flashcards in Microbiology Deck (17):
1

endocarditis

infection of endothelial sites in the heart

2

two types of infective endocarditis? which organsim are associated with each?

acute (staphylococcus aureus) and subacute (streptococcus viridans)

3

what is transient bacteremia?

temporary or short term bacteremia

4

symptoms of acute endocarditis?

fever
chills
pronounced heart murmur
stroke symptoms
signs of embolic infection
congestive heart failure

5

symptoms of sub-acute endocarditis?

fatigue, malaise
fever
night sweats, weight loss
cough
CHF symptoms
glomerulonephritis

6

clinical signs of endocarditis? (hint: hands)

splinter hemorrhages
osler nodes
janeway lesions

7

90% of IE affects the (L/R) side of heart.

Left, in either the mitral of aortic valves.

8

two major causes for right sided infective endocarditis?

tricuspid valve defects
IV Drug use

9

prosthetic valve endocarditis is associated with which two organisms?

staph epidermidis or staph aureus

10

IV drug abuse endocarditis is associated with which two organisms?

staph aureus and candida albicans

11

in the intestinal flora, what are the two organisms associated with IE?

Enterococci
Escherichia

12

What does HACEK mean to you?

gram negative bacilli associated with peridontitis.

13

staph epidermidis is coagulase (+/-), (white/yellow) colonies and (beta/non)-hemolytic

staph epidermidis is coagulase negative, white and non-hemolytic.

14

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

15

why is staph bovis important?

could indicate a colorectal cancer

16

marantic endocarditis?

mucin secreting tumors cause sticky deposits and platelet aggregates on valve- emboli

17

Libman-Sacks Endocarditis?

associated with lupus (SLE)- antibody depositions on valves