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Try again. While the suspicion of a UTI may be correct given these findings, empiric use of a fluoroquinolone in this case is inappropriate. These drugs should be reserved for complicated UTI cases. A better option for first-line empiric therapy is a drug that concentrates well in the urine such as amoxicillin or cephalexin. Fluoroquinolones also concentrate well in the urine, but many types of bacteria have inherent or developing resistance to this class of drugs so empiric use is risky.