The Antibiotic Susceptibility of Bacteria in a Public Hospital in Riyadh Stratified by Organism’s Resistance Characteristics

To ascertain bacterial infections’ susceptibility to antimicrobial drugs and to spot potential drug resistance, clinical microbiology laboratories must perform antimicrobial susceptibility testing. The present study aimed to describe the antibiotic susceptibility of the Klebsiella pneumoniae, Staphylococcus aureus, Pseudomonas aeruginosa, Acinetobacter baumannii, Escherichia coli, and Enterococcal species based on the organisms’ resistance characteristics in a public hospital in Riyadh. The present study included reviewing the bacteria susceptibility results that were collected from the laboratory department from January 2021 to December 2021. One thousand seventy-two bacterial isolates were collected in 2021. More than 68% of the bacteria were gram-negative bacteria. The most common bacteria were Klebsiella pneumoniae (20.2%), Staphylococcus aureus (19.8%), Pseudomonas aeruginosa (17.8%), and Escherichia coli (14.8%). The present study showed that there are different resistance rates among different bacterial strains. Antibiograms stratified by bacteria resistance characteristics may be more useful in selecting appropriate empirical antibiotic therapy. Antimicrobial stewardship programs are well suited to collaborate with clinical microbiologists in developing more advanced antibiograms to optimize antibiotic therapy.