فتحية عبد الله عمار2026-05-202026-05-20https://dspace.academy.edu.ly/handle/123456789/2070Bacteremia represents one of the most sever type of health care associated infection, particularly in intensive care units (ICU), where patients are highly vulnerable due to compromised immunity, prolonged hospitalization, and frequent use of invasive medical device. Aim: To assess the prevalence of bacteremia among ICU patients, to identify associated risk factor, to determine the causative organism and to evaluate their antibiotic susceptibility patterns at Preventive Medicine Hospital from February to June, 2025. Material and Method: A Cross-Sectional Analytic study include 110 patients admitted to ICU over 24hours. vital signs of patients in ICU and risk factor (invasive medical device) were recorder, Blood sample from patients were obtained and processed using standard laboratory protocol to identify presumptive bacterial isolates. The collected isolates were further subjected to initial characterization using Gram stain, catalase testing, determination of the susceptibility to antibiotic were preformed using the Kirby-Bauer method. Results: The study revealed that the prevalence of bacteremia was (36.4%). Regarding gender distribution, 62.5% were male whereas 37.5% were female. Gram positive bacteria were the most common isolated pathogen (52.5%), particularly (32.5% Stap. aureus, 17.50% were S. epidermidis) followed by Gram negative (47.5%) such as (Klebsiella pneumoniae 15%, Acinetobacter baumannii12.50%), showing variable multidrug resistant profiles. Conclusions: In conclusion, because of the importance of bacteremia as a serious and sever infection, researchers should pay more attention to ICU in the hospital in order to increase the health of hospitalized patients, decrease complication, length of stay, and costs. In addition, the causes of incompetence should be investigated in future researches. Keywords: Bacteremia, Intensive care unit, Stap. aureus, Klebsiella pneumoniae, E. coli antimicrobial resistance, Blood culture, Hospital acquired infection.Bacteremia represents one of the most sever type of health care associated infection, particularly in intensive care units (ICU), where patients are highly vulnerable due to compromised immunity, prolonged hospitalization, and frequent use of invasive medical device. Aim: To assess the prevalence of bacteremia among ICU patients, to identify associated risk factor, to determine the causative organism and to evaluate their antibiotic susceptibility patterns at Preventive Medicine Hospital from February to June, 2025. Material and Method: A Cross-Sectional Analytic study include 110 patients admitted to ICU over 24hours. vital signs of patients in ICU and risk factor (invasive medical device) were recorder, Blood sample from patients were obtained and processed using standard laboratory protocol to identify presumptive bacterial isolates. The collected isolates were further subjected to initial characterization using Gram stain, catalase testing, determination of the susceptibility to antibiotic were preformed using the Kirby-Bauer method. Results: The study revealed that the prevalence of bacteremia was (36.4%). Regarding gender distribution, 62.5% were male whereas 37.5% were female. Gram positive bacteria were the most common isolated pathogen (52.5%), particularly (32.5% Stap. aureus, 17.50% were S. epidermidis) followed by Gram negative (47.5%) such as (Klebsiella pneumoniae 15%, Acinetobacter baumannii12.50%), showing variable multidrug resistant profiles. Conclusions: In conclusion, because of the importance of bacteremia as a serious and sever infection, researchers should pay more attention to ICU in the hospital in order to increase the health of hospitalized patients, decrease complication, length of stay, and costs. In addition, the causes of incompetence should be investigated in future researches. Keywords: Bacteremia, Intensive care unit, Stap. aureus, Klebsiella pneumoniae, E. coli antimicrobial resistance, Blood culture, Hospital acquired infection.علوم حياة