Bacteriological study of urinary tract infection

Abstract

This study was done to find out the common bacteria causing urinary tract infection (UTI) and to determine the Antibiotic susceptibility pattern of the urinary pathogens from S.V.R.R General Hospital ,Tirupati.Studies to know the most common causative agents and their susceptibility pattern will help the clinicians to choose the antibiotic for empirical treatment.The prevalence ofUTI in the present study was found to be 40.2%.And the prevalence was found to be higher in females {49%} than in males(29%.)For the purpose of the study ,139 midstream urine samples from the suspected UTI patients were screened for the presence of bacteria in urine.In all the cases clean catch mid stream urine samples were analysed by culture technic.Antimicrobial susceptibility test were performed for the isolated pathogens using Kirby-Bauer disk diffusion method. It was found that the rate of culture positivity in females was 49%and in males was 29%.E.coli was the most frequently isolated urinary pathogen,(39%,)followed by Klebsiella(30%)E.coli was highly sensitive to Ceftrixone(68.1%) and cefotaxime(63.6%)and it was highly resistant to cotrimoxazole(27.2%). It was concluded that ,higher prevalence of UTI was seen in females.E.coli is the predominant organism isolated in UTI.Urinary pathogens showed resistance to commonly used antibiotics like cotrimoxazole,nalidixic acid.The susceptibility and resistance patterns of Urinary pathogens should be considered before starting empirical treatment for UTI.