Table 5.

Effect of Efflux Pump Inhibition on Meropenem Minimum Inhibitory Concentrations for Select Pseudomonas aeruginosa Isolates

Isolate	MIC (mg/L)
	PAβN-	PAβN+
ATCC	0.5	1
1	1	2
2	0.25	2
3	32	8
5	8	4
9	4	2
10	4	2
11	32	4
12	4	2
13	32	16
16	32	4

Abbreviations: ATCC, American Type Culture Collection; MIC, minimum inhibitory concentration; PAβN, phenyl-arginine-β-naphthylamide.