Urinary tract
1. Cystitis-community-acquired, 3-5 days, E coli, nitrofurantoin 100 mg p.o. twice a day with meal but now for creatinine clearance < 30 mL per minutes, alternative cephalexin 500 mg p.o. q.6

2. Pyelonephritis-community acquired, sepsis, 7 days, E coli, Klebsiella, Proteus species, ceftriaxone 2 g IV 24 hour, alternative  azithromycin on 2 g IV Q 8 hours

3. Healthcare associated /complicated (open obstruction, reflux, azotemia, indwelling catheter, neurogenic bladder,), 7-10 days, E coli Klebsiella ,Proteus plus Enterococcus, Pseudomonas, Zosyn 4.5 g IV Q 8 over 4 hour, alternative aztreonam 2 g IV Q 8+  vanco per pharmacy dosing +_ gentamicin 5 milligram/kilogram per 24 hour IV

4. Suspected/history of ESBL, no change in duration necessary if antibiotics are anticipated to be active usually 7-10 days, E coli, Klebsiella species, meropenem 1 g IV Q 8, consult ID.

# complicating factor; calculi, obstruction, indwelling urinary catheter/stents, abnormal anatomy (e.g. Fistula, neurogenic bladder, Neuro bladder, ATC), bloodstream infection
#Treatment for asymptomatic bacteriuria not recommended unless pregnant or immediately prior to invasive  urology procedure