Phenotypic Characterization and Antibiotic Resistance Patterns of Extended-Spectrum β-Lactamase- and AmpC β-Lactamase-Producing Gram-Negative Bacteria in a Referral Hospital, Saudi Arabia
Table 2
Distribution of AmpC β-lactamase-producing Gram-negative bacteria among hospital departments at King Abdullah Hospital, Bisha, Saudi Arabia.
Isolates (n)
Total number (%) of AmpC β-lactamase producers
Gram-negative isolates per hospital department
ICUs (n = 154), AmpC+
Emergency (n = 63), AmpC+
Medicine (n = 24), AmpC+
Surgery (n = 23), AmpC+
OBS and gyne (n = 22), AmpC+
Pediatric (n = 10), AmpC+
Respiratory (n = 8), AmpC+
Urology (n = 7), AmpC+
K. pneumoniae (n = 85)
24 (28.2)
17
2
2
3
0
0
0
0
E. coli (n = 74)
6 (8.1)
0
2
3
0
0
1
0
0
Acinetobacter spp. (n = 49)
36 (73.5)
34
0
1
1
0
0
0
0
P. aeruginosa (n = 37)
20 (54.1)
12
3
0
3
0
0
2
0
Proteus mirabilis (n = 31)
8 (25.8)
3
4
0
1
0
0
0
0
Other Gram-negative rods (n = 12)
3 (13.0)
1
1
0
0
1
0
0
0
Enterobacter cloacae (n = 12)
4 (33.3)
1
1
1
0.0
1
0
0
0
Total (n = 311)
101 (32.5)
68 (44.2)
13 (20.6)
7 (29.2)
8 (34.8)
2 (9.1)
1 (10)
2 (25)
0 (0.0)
OBS and gyne = obstetrics and gynecology; ICUs = intensive care units.
