<prompt> Most common agent causing catheter induced urinary tract infection is:E.ColiPseudomonasStaphylococcus epidermidisProteus  <response>: Answer is A E.Coli: Associate Urinary Tract Infection CAUTI is E.Coli. The most common etiological agent for acute uncomplicated cystitis is E.Coli The most common etiological agent for uncomplicated pyelonephritis is E. Coli The most common etiological agent for Complicated UT1 e.g. CAUT1 is E.Coli 