TABLE 3.

Breakpoints used for drug susceptibility of testing rapidly growing mycobacteria by broth dilution^a

Antibiotic	MIC (μg/mL)			Broth dilution range (μg/mL)
	Susceptible	Intermediate	Resistant
Clarithromycin	≤2	4	≥8	0.06–64
Azithromycin	≤2	4	≥8	0.06–64
Amikacin	≤16	32	≥64	4–128
Tobramycin	≤2	4	≥8	0.5–16
Imipenem	≤4	8–16	≥32	2–64
Meropenem	≤4	8–16	≥32	2–64
Faropenem	N/A	N/A	N/A	2–64
Levofloxacin	≤1	2	≥4	1–32
Moxifloxacin	≤1	2	≥4	0.25–8
Sitafloxacin	N/A	N/A	N/A	0.25–8
Trimethoprim/sulfamethoxazole	≤38/2	N/A	≥76/4	4.8/0.25–152/8
Doxycycline	≤1	2–4	≥8	0.5–16
Linezolid	≤8	16	≥32	1–32
Clofazimine	N/A	N/A	N/A	0.06–2

^aMIC, minimum inhibitory concentration; N/A, not applicable.