<prompt> Which one of the following is true about catheter associated UTI?Most catheter associated UTI patients are symptomaticSignificant bacteriuria occurs in patients catheterized longer than 2 weeksMost commonly infection is due to staph streptococcusAll of the above  <response>: A Most catheter associated UTI patients are symptomatic Catheter associated urinary tract infections account for 40 percent of all nosocomial infections and is the most common source of gram-negative bacteremia in hospitalized patients Diagnosis of catheter-associated urinary tract infection can be made when the urine culture shows 100 or more CFU per mL of urine from a catheterized patient. Microbiology of catheter-associated urinary tract infections includes E. coli and Proteus, Enterococcus, Pseudomonas, Enterobacter, Serratia Candida species Risk factors: Prolonged catheterization 6 days Female gender Diabetes Malnutrition Azotemia creatinine 2.0 mgdL Ureteral stent Antimicrobial-drug therapy 