Abstract: Compositions and methods are provided for the detection of a urinary tract infection by detecting and quantitating at least eight proteins in the sample. Aptamer based proteomic analysis revealed a urine protein signature that differentiated urinary tract infections from culture negative urine samples, regardless of pyuria status. Inclusion of these candidate biomarkers, either alone or in combination, to traditional urinalysis biomarkers assist clinicians in identifying true urinary tract infections, from culture negative pyuria, at the point of care The identified patients can then be treated with a therapeutic pharmaceutical composition comprising standard antibiotics.