Overview
The Serum Phosphorus test measures the level of phosphorus in the blood, an essential mineral for bone formation, energy storage, and cellular function. Phosphorus levels are regulated by the kidneys and influenced by factors such as diet, kidney function, and hormone levels. Abnormal phosphorus levels may indicate issues related to bone health, kidney disease, or imbalances in calcium and vitamin D, making this test valuable in assessing metabolic and bone-related conditions.
What is the Phosphorus Test ?
Of the Phosphorus contained in the body, 88% is localized in bone in the form of Hydroxyapatite. Serum contains approximately 2.5 to 4.5 mg/dL of inorganic Phosphate. Serum Phosphate concentrations are dependent on dietary intake and regulation by hormones such as Parathyroid Hormone (PTH) and 1, 25 vitamin D, and systemic acid base status. Hypophosphatemia may have 4 general causes: shift of phosphate from extracellular to intracellular, renal phosphate wasting, loss from the gastrointestinal tract, and loss from intracellular stores. Hyperphosphatemia is usually secondary to an inability of the kidneys to excrete phosphate and is common in patients with chronic kidney disease stage 4 or greater. Acute hyperphosphatemia can occur as a result of tissue breakdown such as rhabdomyolysis.
What is the Purpose of the Phosphorus Test ?
In order to help diagnose and/or monitor treatment of a variety of conditions that result in calcium and Phosphorus imbalances, Phosphorus tests are often advised in conjunction with other tests, such as those for calcium, Parathyroid Hormone (PTH), and/or
vitamin D.
When is a Phosphorus Test Recommended ?
The following are a few signs that could indicate an Phosphorus Test:
- Anxiety
- Fatigue
- Irregular Breathing
- Irritability
- Joint Stiffness
- Numbness
- Weakness
- Changes in Body Weight
Preparation for Phosphorus Test
It is necessary to fast overnight prior to taking a Phosphorus Test, which means you can only drink water but cannot eat for this time period. Ask your doctor if you need to temporarily stop taking any of your regular medications because they may have an impact on the results of this test.
What is the Cost of the Phosphorus Test ?
The Price of a Phosphorus Test is Rs. 180. However, cost of the test may fluctuate depending on following factors:
- Other tests advised along with Phosphorus Test
- Offers or discounts
- Empanelment of the patient