OBJECTIVE To investigate drug resistance change of Pseudomonas aeruginosa causing pulmonary infections in inpatients in Jinhua area so as to provide references for clinical treatments.METHODS From 2011 to 2013,2090,1611 and 1341cases of patients with lung infections from three hospitals in Jinhua area were selected.Their sputum samples were collected to conduct bacterial culture and isolate P.aeruginosa.K-B disk diffusion was adopted to detect the isolated strains.SPSS 13.0was adopted for statistical analys...