Infectious Diseases II

Definition

CDC definition: See Figure 1.

IDSA definition

Asymptomatic bacteriuria: Refers to bacteria growing in the urine (greater than 105 CFU/mL)

without signs and symptoms associated with UTIs

ii.

Catheter-associated symptomatic bacteriuria: In patients with indwelling urethral, indwelling

suprapubic, or intermittent catheterization (or condom catheter in a man), defined by the

presence of 105 CFU/mL or greater of 1 or more bacterial species in a single catheter urine

specimen in a patient without symptoms compatible with a UTI

Has the urinary catheter been removed?

Not a CAUTI

Not a CAUTI

CAUTI

Not a

CAUTI

Yes

Yes

Yes

No

No

No

Yes

Yes

No

No

No

Was catheter removed on day of

event or the day before

At least 1 of the following signs and symptoms

•  Fever (temp > 38°C)

•  Urgencya

•  Frequencya

•  Dysuriaa

•  Suprapubic tenderness

•  Costovertebral angle pain or tendernessa

Not a CAUTI

At least 1 of the following signs and symptoms

Urinary catheter in place > 2 days and either present on calendar day of event

or removed the day before the event

CFU/mL with no more than

two species of organisms

Not a CAUTI

aWith no other recognized cause

CAUTI = catheter-associated urinary tract infection.