WHAT IS PHOSPHORUS (INORGANIC PHOSPHATE) TEST?
The majority (85%) of phosphorus is stored in the bones in organic compounds. The remainder exists inorganically as phosphate anions within the soft tissue cells of the body and in the bloodstream — phosphate functions in urinary acid-base buffering, energy storage and release, and metabolism of carbohydrates and lipids. Phosphorus is absorbed in the small intestine with the help of vitamin D, and phosphorus levels in the blood, along with calcium levels, are regulated by parathyroid hormone, calcitonin, vitamin D, and the renal phosphate excretion rate. An inverse relationship of calcium and phosphorus blood levels exists.