Appaneal HJ, et al. - Researchers planned this study to delineate national resistance rates for clinical P. aeruginosa respiratory and bloodstream cultures and the prevalence of multidrug-resistant (MDR) P. aeruginosa within the Veterans Affairs (VA). They observed that resistance was highest in fluoroquinolones (33%) and exceeded 20% for all classes assessed. In inpatient settings and in respiratory isolates, higher resistance was evident. Overall prevalence of MDR was 20% (22% inpatient, 11% outpatient).