Phosphorus/Phosphate, Serum
This test measures phosphorus (as phosphate) in your blood. Phosphorus partners with calcium to build bones and teeth and is essential for energy storage and cell function.
Phosphorus balance is managed by your kidneys, gut, and hormones, and it's closely linked with calcium and vitamin D. Its level offers insight into bone, kidney, and mineral health.
A higher phosphorus is often related to reduced kidney clearance and can also follow high intake or certain hormonal conditions. It's typically interpreted alongside calcium and kidney function.
A lower phosphorus can come from poor absorption, certain medications, or hormonal factors, and mild changes may cause no symptoms; it's evaluated in context.
A typical range is roughly 2.5 to 4.5 mg/dL. Your clinician can interpret your value.
Sources
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.