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A 23-year-old female presents to your office complaining of a urinary tract infection. For the last 3 days, she has experienced burning with urination, increased frequency of urination, and urgency to urinate. She denies vaginal discharge, fevers, chills, nausea, and flank pain.

She reports, “I tried to beat it with cranberry juice, but I guess I need antibiotics.” Her exam, including vital signs, is normal. Urinalysis shows 2+ leukocyte esterase, 2+ blood, 50 WBCs/hpf, 10 RBCs/hpf, and many bacteria (squamous cells are rare).