Review Question - QID 213468

A 23-year-old woman presents to the emergency department with burning and increased urinary frequency. The patient states that her symptoms started yesterday and have been worsening despite hydrating well. The patient is generally healthy, does not smoke or drink alcohol, and is 10 weeks pregnant. She is currently taking folate, iron, and a multivitamin. Her temperature is 98.1°F (36.7°C), blood pressure is 122/83 mmHg, pulse is 83/min, respirations are 13/min, and oxygen saturation is 98% on room air. Physical exam is notable for an absence of costovertebral angle tenderness and mild discomfort to palpation of the lower abdomen. An initial urine dipstick is notable for the presence of leukocytes, bacteria, and nitrates. Which of the following is the best treatment for this patient?