It is normal for performance. About 85% of phosphorus in the body is found in bones and teeth in the form of phosphate and 15% in the form of inorganic phosphorus or phosphate esters. It is also found in cells in the form of phospholipid, nucleic acids and adenosine triphosphate, which is also an energy transfer agent. Phosphorus is also involved in carbohydrate metabolism. Phosphorus is seen in the body in the form of phosphate, and phosphorus in the plasma is in the form of calcium phosphate, so the level of phosphorus in the plasma depends on the amount of calcium in the plasma, and the metabolism of calcium and phosphorus are closely related. Hyperphosphatemia or an increase in the amount Serum phosphate can be caused by nutrition, such as the consumption of carbonated soft drinks or alcoholic beverages, or by diseases such as metastasis of bone tumors, liver diseases, diarrhea and vomiting, hypothyroidism, hypervitaminosis caused by increased vitamin D, during the treatment of diabetic coma with insulin injection and Renal failure such as chronic nephritis. Hypophosphatemia (Hypophosphatemia) or a decrease in the amount of serum phosphate is seen in hypovitaminosis caused by vitamin D deficiency, primary hyperparathyroidism, osteomalacia or soft bones, antacid use and malnutrition. Calcium to phosphorus ratio (Ca/Ph Ratio): Calcium to phosphorus ratio In the normal state, it is 10 to 4 or 3.2 to 3.3 times the amount of phosphorus in adults and 1.3 to 3.3 times the amount of phosphorus in children. In glandular diseases, especially parathyroid gland disorders, this ratio is disturbed. A high ratio of phosphorus to calcium indicates allergic and inflammatory diseases. Usually, calcium and phosphorus decrease or increase in opposite proportion.