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Medical Wiki

Phosphate

A blood electrolyte tied to bone mineral, kidney function, PTH, and vitamin D context.

What it is

A phosphate blood test measures phosphate, a form of phosphorus used in bone, energy, nerve, and muscle processes.[1]

Why it matters

Phosphate is read together with calcium, PTH, vitamin D, and kidney function in bone-mineral disorders.[1,2]

What it affects

  • Abnormal phosphate can appear in kidney disease, parathyroid disorders, vitamin D problems, and mineralization disorders.[1,2]

Interpretation traps

  • Do not interpret phosphate alone; diet, kidney function, acute illness, and lab method matter.[1]

Related conditions

Osteomalacia and ricketsCKD-mineral and bone disorder / renal osteodystrophyHyperparathyroid bone disease