Diagnosis • History. Diagnosis is made primarily by history. In women with dysuria and frequency, in the absence of vaginitis, the diagnosis is UTI 80% of the time [evidence: C*]. • Phone triage. In women with prior history of uncomplicated UTI's, consider phone triage [C*]. • Urinalysis. Urinalysis for detection of pyuria by dipstick or microscope has a sensitivity of 8090% and a specificity o...