Miscellaneous Quiz / Endocarditis

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Can you name the Endocarditis?

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HintAnswer
Dz of structurally abnormal valves with low fever, anorexia, and weakness lasting more than several weeks following dental procedure with new or changin heart murmur
 
Tx for streptococci and enterococci
Most common cause of subacute IE in pts, often pts with abnormal valves and acquired from dental procedures
Catalase (-) grows in 6.5% NaCl, a or y-hemolysis
Most common cause of acute IE
Aerobic gram (-), produces pigments, and has diverse metabolic capabilities
Dz of abnormal or normal valves with febrile toxic course, chills, rapid onset of CHF lasting days to weeks
Most common polymicrobial IE
Major predisposing factor to IE
Other gram (organisms) H
IE within 3 months of valve surgery
Valve commonly infected in IV drug user IE
Tx for methicillin resistant staphylococci
Other gram (organisms) A
Tx for methicillin sensitive staphylococci
 
Must be considered in culture-negative IE
Virulence factor that promotes clumping in S. aureus
Virulence factor that promotes conversion of fibrinogen to fibrin clot in S. aureus
HintAnswer
Common species in homeless males
Coagulase (-), no hemolysis, mannitol (-)
Other gram (organisms) C
Fastidious organisms requires 5-10% carbon dioxide for growth + 3 wks incubation
Most common fungal endocarditis bugs
Virulence factor that is a pore-forming toxin in S. aureus
Who needs IE prophylaxis??
Late or early?? Associated w/ nosocomial/wound contamination
Virulence factor Viridans
Other gram (organisms) E
Generally found in IV drug users and ICU pts who receive broad spectrum antibiotics - BC often negative
Causes subacutre IE in pts with damaged heart valves
Late or early?? Associated with transient bacteremia
Virulence factor that inhibits phagocytosis in S. aureua
Infection is a consequence of...
Catalase (+), Coagulase (+), B-hemolysis, and Mannitol (+)
Viridans streptococci bugs
Other gram (organisms) K
Empiric antibiotic therapy in acute and IV drug user
Catalase (-), a-hemolytic, optochin resistant, and bile resistant

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