Table 4.

Distribution And Corresponding Carbapenem MIC Ranges For Strains With Different Resistance Determinants

Carbapenem Resistance Mechanisms	No. Of Isolates	MIC Range (μg/mL)
ETP	IMP	MEM
Carbapenemase positive	55
NDM-1, ESBLs, OMP loss or deficiency	10	8–256	4–64	4–128
NDM-5, ESBLs, OMP loss or deficiency	8	16–256	8–256	4–256
KPC-2, OMP loss or deficiency	34	4–128	1–128	1–128
IMP-4, ESBLs, OMP deficiency	1	64	8	8
IMP-8, ESBLs, OMP loss	1	8	8	8
KPC-2, IMP-4, ESBLs, OMP deficiency	1	256	256	128
Carbapenemase negative	26
AmpC, ESBLs	1	4	2	0.25
AmpC, OMP loss	1	2	2	1
AmpC, ESBLs, OMP loss	1	4	4	0.25
ESBLs, OMP loss or deficiency	23	2–32	0.25–16	0.25–8