Snapshot A 55-year-old man presents to the emergency department from a subacute rehabilitation center for altered mental status. The patient has been slowly becoming confused over the course of a few days. His temperature is 102°F (38.8°C), blood pressure is 138/101 mmHg, pulse is 102/min, and respirations are 18/min. On physical exam, the patient is only oriented to self but not to place or time. His short-term memory is impaired. Of note, the patient has a Foley catheter. Chest auscultation is unremarkable. The patient grimaces upon palpation of the suprapubic area. Laboratory studies are significant for a leukocytosis with left shift and positive blood and urine cultures grow Pseudomonas aeruginosa. (Urosepsis) Introduction Aerobic, non-lactose fermenting, oxidase-positive, gram-negative bacillus Microbiology login to view 2 more bullets Associated conditions login to view 7 more bullets Epidemiology Risk factors login to view 8 more bullets ETIOLOGY Pathogenesis login to view 3 more bullets Presentation Symptoms/physical exam login to view 1 more bullet Studies Lab studies login to view 5 more bullets Differential Upper respiratory tract infection caused by other organisms login to view 2 more bullets Treatment Conservative login to view 3 more bullets Medical login to view 18 more bullets Complications Septic shock Prognosis Varied due to causing a wide spectrum of disease login to view 1 more bullet