Urinary Tract Infection (UTI)

Patient Population: Adult
Diagnosis Common Pathogens Drug(s) of First Choice Alternative Drug(s) Comments Expected Duration
Acute prostatitis 

Enterobacteriaceae (E. coli)

N. gonorrhoeae

C. trachomatis

Ciprofloxacin

OR 

Trimethoprim/

sulfamethoxazole

If high risk for sexually transmitted infection, refer to link below:

https://idmp.ucsf.edu/content/sexually-transmitted-infections

 

Antibiotic penetration in the acute inflammatory state is adequate for most antibiotics

Test for N. gonorrhoeae and C. trachomatis in sexually active patients and treat as indicated

2-4 weeks

Cultures should be obtained and definitive therapy should be based on sensitivities
Chronic prostatitis  Enterobacterales spp (E. coli)

Ciprofloxacin 

OR 

Trimethoprim/

sulfamethoxazole

 

Few drugs penetrate non-inflamed prostate

Fluoroquinolones and trimethoprim/sulfamethoxazole adequately penetrate in non-inflamed state

Test for N. gonorrhoeae and C. trachomatis in sexually active patients

Consider urologic evaluation

*Cultures should be obtained and definitive therapy should be based on sensitivities.
6-8 weeks
Asymptomatic bacteriuria 

Enterobacterales spp

Enterococcus spp

No antibiotic treatment required, replace or remove urinary catheter

 

Pyuria, foul smelling or cloudy urine alone are not indications for treatment

Exceptions: pregnant women, patients having traumatic urologic procedures, ANC < 500, recent renal transplant (3 months)
0 days
Catheter-associated candiduria Candida spp

Treatment not generally required

  Pyuria is not an indication for treatment 0 days  
Community-acquired pyelonephritis/complicated UTI, hospitalized patient  Enterobacterales spp (e.g. E. coli, Proteus)

Ceftriaxone

OR

Ertapenem 

(if most recent microbiology suggesting resistance or for hemodynamically unstable patients)

For severe beta-lactam allergy:

Aztreonam

Switch to oral therapy when susceptibilities known and patient stable

Consider prostatitis in males with UTI and fever

7 days
Community-acquired pyelonephritis/complicated UTI, outpatient 

Enterobacterales spp (E. coli)

Enterococcus spp

Ceftriaxone X 1 dose 

Followed by 

TMP/SMX (trimethoprim/sulfamethoxazole) 

OR

Ciprofloxacin (preferred as monotherapy if ceftriaxone not available)

Ceftriaxone X 1 dose

Followed by one of the agents below:

Trimethoprim/Sulfamethoxazole 

OR 

oral β-lactam (amoxicillin/clavulanate, cefuroxime, cefpodoxime)

Trimethoprim-sulfamethoxazole is preferred if organism is susceptible

 

Consider prostatitis in males with UTI and fever

Urinalysis and urine culture should be performed and therapy adjusted based on culture and sensitivity

7 days

 

Healthcare onset UTI (including catheter associated)

Enterobacterales spp (e.g. E. coli, Proteus)

P. aeruginosa (less common)

Piperacillin/
Tazobactam

OR

Ertapenem (if most recent microbiology suggesting resistance or  if hemodynamically unstable)

 

For severe PCN allergy:
Aztreonam
 

Criteria: signs and symptoms compatible with a UTI, no other identified source of infection, & ≥ 100,000 cfu of  ≥ 1 bacterial species on urine culture

Pyuria alone is not an indication for treatment.

A negative urinalysis suggests an alternative source of infection

Remove catheter if possible.

Switch to oral therapy when susceptibilities known and patient stable

Consider prostatitis in males with UTI and fever

7 days 
Uncomplicated Cystitis, Women 

Enterobacterales spp (E. coli)

Staph. saprophyticus (Coagulase negative staphylococcus) (4%)

Nitrofurantoin 100 mg PO BID x 5 days (avoid if CrCl < 30 mL/min)

Cephalexin 500 mg PO BID x 5-7 days

Reserve for patients at highest risk of failure (selection for resistant isolates):

Ciprofloxacin 500mg PO q12h x 3 days

Fosfomycin 

Trimethoprim/ Sulfamethoxazole 1 DS PO BID x 3 days (if no previous antibiotic therapy)

Asymptomatic bacteriuria and/or pyuria are not indications for treatment

Exceptions: pregnant women, patients having traumatic urologic procedures, ANC < 500, recent renal transplant (3 months)

IDSA guidelines state Trimethoprim/ Sulfamethoxazole is appropriate if resistance rates do not exceed 20%

In patients with recurrent UTIs, review recent microbiology to help determine empirical therapy

3-7 days depending on antibiotic chosen