Review Question - QID 109260

A 30-year-old woman presents to a federal health clinic complaining of pelvic pain and blood in her urine. She recently arrived to the United States as a refugee from South Sudan. She reports that she experienced these symptoms in South Sudan but did not have the money to undergo any diagnostic testing. Her temperature is 100.6°F (38.1°C), blood pressure is 125/75 mmHg, pulse is 95/min, and respirations are 18/min. Physical examination reveals suprapubic tenderness to palpation and a normal bimanual exam. A urine pregnancy test is negative. Hematologic labs are shown below:

Leukocyte count and differential:
Leukocyte count: 10,000/mm^3
Neutrophils: 54%
Bands: 3%
Eosinophils: 12.5%
Basophils: 0.5%
Lymphocytes: 25%
Monocytes: 5%

Hemoglobin: 12.5 g/dL
Hematocrit: 39%
Platelet count: 250,000/mm^3

Findings from a urinalysis are shown in Figure A. This patient should be started on which of the following medications?