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15 Cards in this Set

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  • Back
History
found in 1960's
Epidemiology
Becoming more prevalent
Esp. those with weak immunes
often caused by doctors
Epidemiology cont...
CA-MRSA
Community Associated MRSA
MRSA stands for
Methicillin Resistant Staph. Aureus
Etiology:
Causative Agent
Staphylococcus aureus
Staphylococcus aureus
resident flora on skin.
can be opportunistic if skin/mucous membrane is compromised
Etiology continued:
MRSA vulnerability
penicillins and cephalosporins
Transmission
Situations:
often during medical procedures.
athletes, military personnel, people living in close quarters
Transmission
transmitted how:
-by fomites such as razors or towels or direct contact with wounds or bandages
Pathogenesis
Staph. aureus...
-produces exotoxins
-causes clotting of blood in the area
exotoxins
break down the binding between healthy skin cells and the connective tissues attachments between structures in the body
Pathogenesis Continued:
fibrin
protects colonies from host defenses
Treatment:
Is time important?
yes
Treatment:
New IDI-MRSA test
can detect MRSA from nasal swab in 2 hrs
Treatment:
Vancomycin
-best drug to treat MRSA
-strains have been reported as completely resistant to Vancomycin