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Table 3 Antibiotic susceptibility test result of Gram negative bacteria isolated from pus specimens

From: Prevalence of methicillin resistant Staphylococcus aureus, multidrug resistant and extended spectrum β-lactamase producing gram negative bacilli causing wound infections at a tertiary care hospital of Nepal

Isolates Antimicrobial agents
  RXN AMP AK CIP COT GEN CTX CTR CZ MRP
E.. coli (10) S 0 Nt 6 (60) 4 (40) 8 (80) 5 (50) 3 (30) 2 (20) Nt
R 10 (100) Nt 4 (40) 6 (60) 2 (20) 5 (50) 7 (70) 8 (80) Nt
P. aeruginosa (5) S Nt 5 (100) 4 (80) Nt Nt Nt Nt Nt Nt
R Nt 0 1 (20) Nt Nt Nt Nt Nt Nt
K. pneumoniae (6) S Nt 4 (66.7) 4 (66.7) 3 (50) 4 (66.7) Nt 3 (50) Nt 5 (83.3)
R Nt 2 (33.3) 2 (33.3) 3 (50) 2 (33.3) Nt 3 (50) Nt 1 (16.7)
P. vulgaris (n = 2) S 0 2 (100) 1 (50) 1 (50) Nt 2 (100) Nt 0 Nt
R 2 (100) 0 1 (50) 1 (50) Nt 0 Nt 2 (100) Nt
P. mirabilis (n = 1) S 1 (100) 1 (100) 1 (100) 0 Nt 1 (100) Nt 0 Nt
R 0 0 0 1 (100) Nt 0 Nt 1 (100) Nt
C. freundii (3) S 0 Nt 1 (33.3) 1 (33.3) 1 (33.3) 1 (33.3) 1 (33.3) 0 Nt
R 3 (100) Nt 2 (66.7) 2 (66.7) 2 (66.7) 2 (66.7) 2 (66.7) 3 (100) Nt
Acinetobacter spp. (n = 6) S 2 (33.3) 4 (66.7) 4 (66.7) 3 (50) 4 (66.7) 3 (50) Nt 3 (50) Nt
R 4 (66.7) 2 (33.3) 2 (33.3) 3 (50) 2 (33.3) 3 (50) Nt 3 (50) Nt
  Antimicrobial agents
  RXN AMP AK CIP CAZ TOB IMP PI CZ MRP
P. aeruginosa (5) S Nt 5 (100) 4 (80) 2 (40) 5 (100) 5 (100) 3 (60) Nt Nt
R Nt 0 1 (20) 3 (60) 0 0 2 (40) Nt Nt
Total (n = 38) S 3 (13.6) 21 (84) 25 (65.7) 14 (42.4) 22 (73.3) 17 (63) 10 (41.7) 5 (22.7) 5 (83.3)
R 19 (86.4) 4 (16) 13 (34.3) 19 (57.6) 8 (26.7) 10 (37) 14 (58.3) 17 (77.3) 1 (16.7)
  1. Nt not tested, S Sensitive, R Resistant, RXN Reaction, AMP Ampicillin, AK Amikacin, CIP Ciprofloxacin, COT trimethoprim + sulfamethoxazole (cotrimoxazole), GEN Gentamicin, CTX Cefotaxime, Caz Ceftazidime, TOB Tobramycin, IMP Imipenem, PI Piperacillin, CTR Ceftriaxone, CZ Cefazolin, MRP Meropenem