The Performance of Direct Disk Diffusion for Community Acquired Bacteremia due to Gram-Negative Bacilli and Its Impact on Physician Treatment Decisions

Table 1

Susceptibility profile of included Gram-negative Bacilli.

Species ()	% resistant  (standard susceptibility)
	Ampicillin	Gentamicin	Ciprofloxacin	Cefazolin	Cefotaxime	Amoxicillin/clavulanic acid	Piperacillin-tazobactam	Ceftazidime	Trimethoprim-sulfamethoxazole	Imipenem	Tobramycin
E. coli (48)	50	2.1	12.4	8.3	2.1	4.2	0	2.1	20.8	0	2.1
E. coli ESBL (7)	100	28.6	100	100	100	100	100	100	57.1	0	28.6
Klebsiella pneumoniae (13)	100	0	7.7	100	0	92.3	0	0	15.4	0	7.7
Proteus mirabilis (5)	100	0	0	100	0	100	0	0	20	20	0
Enterobacter sp. (5)	100	20	0	100	40	100	20	40	0	0	20
Klebsiella oxytoca (3)	66.7	0	0	33.3	0	33.3	0	0	0	0	0
Klebsiella oxytoca ESBL (1)	100	0	0	100	100	100	100	0	0	0	0
Serratia marcescens (3)	100	0	0	100	33.3	100	0	33.3	0	0	0
Pseudomonas aeruginosa (3)	100	0	0	100	0	100	0	0	66.7	0	0
Burkholderia cepacia (1)	100	100	0	100	100	100	0	100	0	100	100