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Staph aureus

Whats tests can one perform to confirm the presence of Staph aureus? Catalase (+), Coagulase (+), DNAse (+), Ferments glucose and mannitol so yellow on MSA agar
List 3 infections Staph aureus causes. Scalded Skin Syndrome, Endocarditis, osteomyelitis, cystitis, cellulitis, impetigo.
What makes Staph aureus resistant to Ampicillin and Penicillin, and intermediate to Methicillin? The enzyme beta-lactamase, which destroys the beta lactam ring of the antibiotic or the penicillin binding proteins.
What are some of the factors that may predispose one to a SA infection? Defects in leukocyte chemotaxis, skin injuries, underlying disease, and foreign bodies
Describe the appearance of SA on BAP, chocolate, and MSA agars. BAP- Beta-hemolysis, buttery texture, yellow, bigger then strep species Chocolate- yellow, buttery like consistency, medium sized colonies MSA- appears yellow due to the fermentation of mannitol, all other staphs cannot do that
Created by: Cgover7