Asymptomatic Bacteriuria Management

Publication Date: March 19, 2019

Key Points

Key Points

The definition of ASB5 in patients without indwelling catheters is ≥10 cfu/mL (≥10 cfu/L) in a voided urine specimen without signs or symptoms attributable to 8UTI.
  • For women, two consecutive specimens should be obtained, preferably within 2 weeks, to confirm the persistence of bacteriuria. From 10–60% of women, varying with the population, do not have persistent bacteriuria on repeat screening after an initial positive specimen.
  • For men, a single urine specimen meeting these quantitative criteria is sufficient for diagnosis.
Observational and intervention studies evaluating long-term screening and treatment in school children and healthy women suggest that ASB is benign in children and in women who were not pregnant. In addition, efforts to maintain sterile urine are often futile.

Screening for and treatment of ASB is only recommended for pregnant women and prior to endourologic procedures.

Studies in other populations suggest that antimicrobial treatment does not confer any benefits, but does increase the risk of adverse outcomes including antimicrobial resistance and Clostridiodes difficile infection. In some cases the risk of UTI shortly following therapy may be increased.

Management

...agement...

...al Populations...

...nfants and children, the IDSA recommends a...

...althy pre-menopausal, non-pregnant w...

...n pregnant women, the IDSA recommends scr...

...t women with ASB, the IDSA suggests 4–7 days...

...ity-dwelling persons who are function...

...ons resident in long-term care facilities, the IDS...


Comorbidi...

...der patients with functional or cognitive im...

...older patients with functional an...

...patients with diabetes, the IDSA recomme...

...lant recipients who have had renal tra...

...ts with non-renal solid organ transplants, th...

...with high-risk neutropenia (...

...spinal cord injury (SCI), the IDSA re...


...heters...

...with a short-term indwelling urethral cath...

...with indwelling catheters, the IDSA makes no recom...

...h long-term indwelling catheters,...


...rgery...

In patients undergoing elective non-urolog...

...ients who will undergo endoscopic urologic...

...who will undergo endoscopic urologic procedures,...

...patients with ASB who will undergo a urolo...

...s planning to undergo surgery for an artifi...


Devic...

...atients living with implanted urologic devices, t...