In the context of urinary tract infection management, which outcome confirms resolution of infection after antibiotic therapy?

• A. Bacteria are absent on urine culture
• B. Patient reports pain relief
• C. WBC count normalizes
• D. Urine appears clear

Answer: (A)

The key concept is confirming bacteriologic cure after antibiotic therapy for a urinary tract infection. Symptom relief is important, but it doesn’t guarantee that all bacteria have been eradicated. The most definitive way to confirm resolution is a follow-up urine culture showing no bacterial growth, indicating the infection has been cleared.

Pain relief can occur even if bacteria remain, so it’s not a reliable sole indicator of cure. A normal white blood cell count isn’t specific to urinary tract infection resolution, and urine appearing clear can be misleading if bacteria persist or if there’s residual inflammation. Therefore, absence of bacteria on urine culture best confirms that the infection has been resolved.