TABLE 1.

MICs, multiples of MICs, and duration of PAEs for organism-antibiotic combinations studied by flow cytometry

Organism	Antibiotic	MIC (μg/ml)	Multiple of MIC	PAE (h)
E. coli ATCC 25922	Ampicillin	2.0	2	−0.3
			4	−0.4
			8	−0.3
	Ceftriaxone	0.03	2	−0.3
			4	−0.2
			8	−0.5
	Gentamicin	1.0	1	0.7
			2	0.6
	Ciprofloxacin	0.015	1	1.5
			2	2.7
	Rifampin	16	1	0.6
			2	1.5
P. aeruginosa ATCC 27853	Imipenem	2.0	2	1.3
			4	1.9
			8	2.6
	Ciprofloxacin	0.5	2	0.7