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5 Cards in this Set
- Front
- Back
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MRSA
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Methicillin Resistant Staphylococcus aureus Two subtypes specified with locale: HA = hospital acquired CA = Community acquired |
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VRE
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Vancomycin Resistant Enterococci Resistance mechanisms usually affecting the aminoglycosides and beta lactam antibiotics |
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C. Diff
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Clostridium difficile Colonization usually impeded by normal gut flora. A particular risk to immune-compromised patients or those on antibiotics. |
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Staphylococcus aureus |
Gram positive tetrads or clusters or triads, non spore-forming, non-motile. S. aureus, S. epidermidis and S. saprophyticus are clinically significant. TSS and Scalded Skin syndrome and skin lesions are often caused by these. |
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S. Aureus virulence factors
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Produces several Enderotoxins. Produces several enzymes: Catalase - differentiates from Streps Coagulase - differentiates from other staphs. Hyaluronidase & lipase - aids in colonization and spread Beta-lactamase - breaks down beta-lac antibiotics: e.g. penicillins, cephalosporins, carbapenems, monobactems |
