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5 Cards in this Set

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  • Back
What unique toxin tends to distinguish hospital MRSA and community-acquired MRSA?
Panton-Valentine leucocidin (PVL)
What soap is recommended for hand washing to prevent recurrence of MRSA
chlorhexidine
What ability does S. aureus have that helps it produce such a wide variety of infections and gain resistance to antibiotics?
It picks up genes from other organisms by lateral transfer(up to 30% of its genetic material)
1)What is the predominant clone of communiy-acquired MRSA?
2) Why?
1) USA300 (90-99%)
2) It doubles 1.25x faster than standard strains
1) What is initial IV treatment of staphilococcus infections in hospital?
2) What IV drugs should be used when organism is known? (2 alternatives)
1) Initial treatment:
Nafcillin (covers MSSA)
Vancomycin (covers MRSA, but is slowly bacteriocidal)
2) When organism known:
Nafcillin for MSSA
Clindamycin for suseptible strains of MRSA