What is it used for?A phosphate in blood test may be used to:Diagnose and monitor kidney disease and bone disordersDiagnose parathyroid disorders. Parathyroid glands are small glands located in the neck. They make hormones that control the amount of calcium in the blood. If the gland makes too much or too little of these hormones, it can cause serious health problems.A phosphate in blood test is sometimes ordered along with tests of calcium and other minerals.
