Table 1.

Diameter interpretive standards of inhibition zones according to [16]

No	Antibiotic agent	Concentration microgram/disc	Diameter of zone inhibition (mm)
			Sensitive	Intermediate	Resistant
1	Cefotaxime	30	≥ 26	23–25	≤ 22
2	Ampcillin	10	≥ 17	14–16	≤ 13
3	Trimethoprim/sulfamethoxazole	25	≥ 16	11–15	≤ 10
4	Gentamicin	10	≥ 15	13–14	≤ 12
5	Ciprofloxacin	5	≥ 21	16–20	≤ 15
7	Azetreonam	30	≥ 22	16–21	≤ 15
8	Amikacin	30	≥ 17	15–16	≤ 14