β-Lactamase-Producing Multidrug-Resistant Bacterial Pathogens from Tracheal Aspirates of Intensive Care Unit Patients at National Institute of Neurological and Allied Sciences, Nepal

Table 1

Pattern of microbial isolates from tracheal aspirate of ICU patients.

Organisms	Frequency	MDR (%)
Gram-negative bacteria	154	108 (70.1)
Acinetobacter spp.	55	47 (85.4)
K. pneumoniae	42	31 (73.8)
Pseudomonas spp.	37	19 (51.3)
E. coli	12	6 (50)
Enterobacter spp.	3	2 (66.7)
K. oxytoca	2	2 (100)
Citrobacter freundii	2	0
Proteus vulgaris	1	1 (100)
Gram-positive bacteria	13	7 (53.8)
S. aureus	12	6 (50)
S. pneumoniae	1	1 (100)
Total	167	115 (68.8)