K.N. is a 24-year-old woman who presents to the family practice clinic complaining of sudden urgency to urinate, back pain, frequent urination, and pain with urination. Symptoms began approximately 48 hours ago. She awoke from sleep with urgency and suprapubic discomfort 2 nights ago. Her urine now has a strong odor and a cloudy appearance. She has an allergy to Bactrim.
Urine dipstick results: Color, dark yellow, specific gravity 1.035, ph 5.5, protein (-), Ketones (-), Bilirubin (-), Trace blood, Leukoesterase (+), Nitrites (+), Urobilinogen (-)