Distribution of main pathogenic bacteria and analysis of drug resistance of Escherichia coli in urinary system infection

Objective To understand the distribution of main pathogenic bacteria and the status of drug resistance of Escherichia coli in urinary system infection in our hospital and to provide the basis for reasonable drug use.Methods The bacteria identification system of France Biomerieux API was used in the bacterial identification.Drug sensitive test was performed with paper stip method.Results 282 strains of pathogenic bacteria were separated from the urine samples of 1 068 cases and the number of strains of Gram negative bacilli was 199,the Gram positive cocci was 67.The positive rate of Escherichia coli was the highest followed by enterococcus and staphylococci.The drug resistant rate of Escherichia coli was the lowest to imipenem followed by cefoperazone/sulbactam and piperacillin/tazobactam.The drug resistant rate of Escherichia coli was the highest to sulfamethoxazole/trimethoprim followed by ciprofloxacin and piperacillin.Conclusion The urinary infections are mainly caused by Escherichia coli.Clinicians must use antibiotics reasonably depending on the results of drug sensitive tests.