Clarilab

Kidney and electrolytes

Phosphorus test

Also called phosphate

A mineral that works with calcium in bones.

Typical range
2.5–4.5 mg/dL.
Usual recheck
About 3 months when out of range

Why it's done

Checked with kidney and bone problems.

What a high result can mean

Kidney disease.

What a low result can mean

Poor nutrition, low vitamin D or alcohol.

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More kidney and electrolytes tests

Kidney function test (KFT)Creatinine, urea or BUN, uric acid, eGFR and usually electrolytes. CreatinineA waste product from muscles, cleared by the kidneys. eGFRAn estimate of how much blood your kidneys filter each minute, worked out from… UreaA waste product from protein breakdown, cleared by the kidneys. BUNThe nitrogen part of urea (urea ≈ BUN × 2.14). Uric acidA waste product from purines in food and cells.