Mayo Clinic in Minnesota has been recognized as the best Urology hospital in the nation for 2015-2016 by U.S. News & World Report. Urinalysis is a test that evaluates a sample of your urine. Urinalysis is used to detect and assess a wide range of disorders, such as urinary tract infection, kidney disease and diabetes.Urinalysis involves examining the appearance, concentration and content of urine.rinalysis is used to detect and assess a wide range of disorders, such as urinary tract infection, kidney disease and diabetes. Urinalysis involves examining the appearance, concentration and content of urine.