Prevalence of Plasmid-Mediated Quinolone Resistance Determinants and OqxAB Efflux Pumps among Extended-Spectrum -Lactamase Producing Klebsiella pneumoniae Isolated from Patients with Nosocomial Urinary Tract Infection in Tehran, Iran

Table 2

Antimicrobial susceptibly pattern of 247 ESBL producing K. pneumoniae isolated from patients with UTI to 15 antimicrobial agents.

Antibiotics	Antibiotic susceptibility ( = 247)
	R	I	S
	(%)	(%)	(%)
Cefotaxime	197 (79.7)	5 (2.1)	45 (18.2)
Ceftazidime	201 (81.4)	10 (4)	36 (14.6)
Ceftriaxone	160 (64.8)	4 (1.6)	83 (33.6)
Cefpodoxime	188 (76.2)	7 (2.8)	52 (21)
Piperacillin	160 (64.8)	0 (0)	87 (35.2)
Aztreonam	168 (68)	0 (0)	79 (32)
Imipenem	93 (37.7)	4 (1.6)	150 (60.7)
Amikacin	86 (34.8)	6 (2.4)	155 (62.8)
Gentamicin	143 (57.9)	15 (6.1)	89 (36)
Norfloxacin	199 (80.5)	4 (1.6)	44 (17.9)
Ciprofloxacin	150 (60.8)	6 (2.4)	91 (36.8)
Nalidixic acid	155 (62.8)	12 (4.8)	80 (32.4)
Cotrimoxazole	178 (72.1)	5 (2)	64 (25.9)
Tetracycline	120 (48.6)	8 (3.2)	119 (48.2)
Tigecycline	35 (14.2)	0 (0)	212 (85.8)