Laboratory Evaluation of Pseudomonas Aeruginosa Distribution and Diagnosis in Clinical Samples

Abstract

This study analyzed the prevalence and characteristics of bacterial infections, focusing on Pseudomonas aeruginosa, using 58 clinical samples from Al-Jalaa Hospital and Al-Sharq Laboratory. The results revealed a clear dominance of Pseudomonas bacteria, which were isolated from 50 of the 58 total samples, accounting for 86.21% of the cases. Younger age groups were the most affected, with children aged 6-10 years showing the highest proportion of cases (24.0%). A higher prevalence was also observed among females, who accounted for 44 of the 50 positive cases (88.0%). Additionally, urine samples were the most frequently collected specimen type, making up 37.9% of the total samples. Antimicrobial susceptibility testing was performed on 50 clinical isolates of Pseudomonas. The results showed that Colistin was the most effective antibiotic with 96% susceptibility, followed by Amikacin (80%) and Imipenem (60%). In contrast, high resistance rates were observed against Ceftazidime (52%), Ciprofloxacin (50%), and particularly Piperacillin (86%), highlighting the limited effectiveness of these agents for empirical therapy