OBJECTIVE To investigate the drug resistance of the Pseudomonas aeruginosa causing respiratory tract infections to the commonly used antibiotics in Daqing so as to provide guidance for reasonable clinical use of antibiotics.METHODS A total of 1 623 strains of P.aeruginosa were isolated from 2011 to 2013,the drug resistance rates of the strains to the commonly used antibiotics were observed and compared,the bacterial identification was carried out by using VITEK-2automatic bacterial identification and drug s...