Overview of Phosphorus, Serum
What is Phosphorus, Serum?
Preparation for Phosphorus, Serum
- Do not eat or drink anything other than water for 8-12 hours before the test.
Why Get Tested for Phosphorus, Serum?
The Phosphorus Test is performed:
• To evaluate phosphate levels in case of bone and kidney diseases
• To determine conditions associated with certain glands like parathyroid glands
• To determine the cause of abnormal levels of Vitamin D
• To monitor levels when taking phosphorus or calcium supplements
Understand more about Phosphorus, Serum
Phosphorus is both a mineral and an electrolyte, which is present in blood as organic and inorganic phosphates. Phosphates perform a number of essential roles in the body. It is critical in energy production and storage as it forms a part of the energy currency of cells (Adenosine tri, di, and monophosphates). It is also a structural component of DNA. It is essential in the functioning of nerves and muscles, and in the growth and maintenance of healthy bones. In blood, phosphates act as buffers to maintain the pH and electrolyte balance of the body.
Diet forms the main source of phosphorus. Once consumed, it is quickly absorbed by the digestive system. In the body, most of the phosphates are bound to the bones and teeth with calcium. Some of it is found in muscles and nerves, and a small amount in all cells where it forms a structural component of DNA and energy storage. Very small amounts of phosphates are normally found in circulation and these levels are measured with the serum phosphate test.
Phosphate levels in the blood are maintained within its very narrow normal concentration range by excretion of excess phosphorus through kidneys. Phosphate levels are also dependent on the levels of calcium, Vitamin D and Parathyroid Hormone in blood.
What Results of Phosphorus, Serum mean?
Normal range: 2.40 to 4.40 mg/dL
Phosphate concentration in the blood is maintained within a narrow normal range between 2.40 mg/dL and 4.40 mg/dL.
Hypophosphatemia or low blood phosphorus is indicated if phosphorus concentration lies below the normal range.
Hyperphosphatemia or high blood phosphorus is indicated if phosphorus concentration lies above the normal range.
Phosphate levels in children are usually higher than in adults due to the active growth of bones in children.
Patient Concerns about Phosphorus, Serum
Frequently Asked Questions about Phosphorus, Serum