Staphylococcal resistance to oxacillin is used to determine and report resistance to:
a. aminoglycosides.
b. cephalosporins.
c. vancomycin.
d. amikacin.
B
Resistance to all other lactams, including cephalosporin antibiotics, always accompanies a re-sistance to oxacillin. Systemic infections caused by staphylococcal species resistant to oxacil-lin/methicillin are generally treated with vancomycin.
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