Objective To examine the characteristics of imipenem-resistant Pseudomonas aeruginosa and its mechanisms of drug resistance. Methods Forty strains of imipenem-resistant P.aeruginosa were isolated from clinical specimens that were tested at this Hospital from December 2013 to August 2015.An automated microorganism analyzer was used to identify bacteria and a drug sensitivity test was performed using the disc diffusion method.A polymerase chain reaction(PCR)was performed to detect carbapenemase genes(IMP,VIM,...