Phosphorus (Phosphate)

Definition

Phosphate is an electrolyte. Its roles: building strong bones and teeth (most of the body's phosphate is in the bones), energy production, nerve and muscle function, fluid and pH balance.

Purpose

Diagnosis and monitoring of kidney disease (especially chronic kidney disease), bone disorders and parathyroid dysfunction. Also in uncontrolled diabetes, acid-base imbalance, abnormal calcium levels, or symptoms such as muscle cramps, bone pain or irregular heartbeat.

Results

High (Hyperphosphatemia)Low (Hypophosphatemia)
Advanced kidney disease/failure, hypoparathyroidism, acidosis, long-term use of steroids/laxatives/enemasHyperparathyroidism, vitamin D deficiency, inadequate phosphorus intake, use of antacids or diuretics

Normal Values

Laboratory specific.

Risks and Limitations

In children, levels are naturally higher because of bone growth, so a child's result should not be interpreted against the adult range.

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