Question

A 72‑year‑old woman undergoing elective total knee arthroplasty has asymptomatic bacteriuria (E. coli 10⁵ CFU/mL) on preoperative screening. No urinary symptoms. What is the best management?

Accepted Answer

No antibiotics indicated

Answer

Treat now with nitrofurantoin for 5 days

Answer

Treat with TMP‑SMX for 3 days pre‑op

Answer

Delay surgery and treat with ciprofloxacin 7 days

Answer

Place Foley and start prophylactic antibiotics

Practice question

A 72‑year‑old woman undergoing elective total knee arthroplasty has asymptomatic bacteriuria (E. coli 10⁵ CFU/mL) on preoperative screening. No urinary symptoms. What is the best management?