Q. A 6-year-old girl is brought to your primary care clinic by her mom, who reports that the child has been experiencing an increased frequency of urination and discomfort while urinating for the past two days. She does not have any previous history of UTI. On examination, the child is afebrile and vitals are within normal. Physical examination is normal. A microscopic urinalysis shows pyuria and bacteriuria. What is the most appropriate next step in management for this child?