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Pneumonia is the inflammation of the lung and several bacterial etiological agents are knownto cause the infection. Studies have shown several gram negative bacteria including Pseudomonas spp,Klebsiella spp and gram positive bacteria such as Streptococcus spp are known to cause infection. In thepresent study we aim to evaluate the spectrum of bacterial isolates and their antibiotic sensitivity patternisolated from BAL specimen.Materials and Methods: The retrospective study was carried out in a tertiary care center over a period ofone year. The isolates were evaluated and identified with antibiotic sensitivity pattern.Results: The overall BAL specimen processed in a year were 90, in which culture were positive in28 cases (31%). The organisms isolated were Pseudomonas aeruginosa , grown in 15 cases (52%),Klebsiella pneumoniae grown in 7 cases (28%), Escherichia.coli grown in 3 cases (10%) and Streptococcuspneumoniae in 3 cases (10%). Most of the organisms are sensitive to antibiotics .Conclusion: The present study has shown the most common isolate at our tertiary centre was Pseudomonasaeruginosa, followed by Klebsiella spp and in gram positive bacteria the common organism isolated wasStreptococcus pneumoniae. Our results contribute to evaluate the common prevalent organisms causingpneumonia and also helps in improving the epidemiological knowledge.Department of Microbiology, Kamineni Academy of Medical Sciences and Research Centre, LB Nagar,Hyderabad- 500068, Telangana, India.Keywords: Pseudomonas aeruginosa, Symptoms of pneumonia, Bacteria isolated.

Spectrum of pathogenic bacteria isolated from the bronchoalveolar lavage in a tertiary care centre at Hyderabad