What is it used for?A phosphate in urine test may be used to:Help diagnose kidney problemsFind the cause of a kidney stone, a small, pebble-like substance that can form in the kidneysDiagnose disorders of the endocrine system. The endocrine system is a group of glands that release hormones into your body. Hormones are chemical substances that control many important functions, including growth, sleep, and how your body uses food for energy.
