Table 1.

Combinations of micro-organisms and antimicrobial agents (bug–drug combinations) and corresponding antibiotic concentration ranges tested.

Micro-Organism Group	Antimicrobial Agent	Specifast® Concentration Range	VITEK2® Concentration Range
Enterobacterales spp.	Ciprofloxacin Cefotaxime Meropenem	0.25–4 μg/mL 0.25–64 μg/mL 0.25–16 μg/mL	0.25–4 μg/mL 0.25–64 μg/mL 0.25–16 μg/mL
Staphylococcus spp.	Oxacillin + 2% NaCl a Vancomycin Cefoxitin	0.25–4 μg/mL 0.5–32 μg/mL 6 μg/mL	0.25–4 μg/mL 0.5–32 μg/mL 6 μg/mL
Enterococcus spp.	Ampicillin Vancomycin	2–32 μg/mL 0.5–64 μg/mL	2–32 μg/mL 0.5–32 μg/mL

NaCl: Sodium chloride; ^a The first seven Staphylococcal blood cultures were tested with solely oxacillin, in the consecutive samples Oxacillin with two percent of sodium chloride was used.