Table 1.

Automated Microscopy Tests

Test	Antibiotic/Media/Additive
MRSA phenotype (cefoxitin)	Cefoxitin
Clindamycin resistance	Clindamycin
Amikacin resistance	Amikacin
Piperacillin/tazobactam resistance	Piperacillin/tazobactam
Imipenem resistance	Imipenem
Ceftazidime resistance	Ceftazidime
Fastidious organism detection	AST-S
Acinetobacter spp. detection	Sulbactam
Stenotrophomonas maltophilia/Pseudomonas aeruginosa differentiation	Trimethoprim/sulfamethoxazole
Growth control	Mueller-Hinton agar

Definition of abbreviations: AST-S = Phoenix AST-S Broth/Indicator (BD Diagnostics, Sparks Glencoe, MD); MRSA = methicillin-resistant Staphylococcus aureus.