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Kidney Function

Uric Acid

Normal range 3.4–7 mg/dL (202–416 µmol/L SI). Specimen: Serum.

Also known as: urate.

3.4–7 mg/dLReference range

Reference range

Conventionalmg/dL
3.47
SIµmol/L
202416
SpecimenSerum
Conventional range3.4–7 mg/dL
SI range202–416 µmol/L
Conversion factor×59.48 (conventional → SI)
PanelKidney Function

Convert any Uric Acid result between units on the unit converter.

What is the normal range for Uric Acid?

The standard teaching reference range for Uric Acid is 3.4–7 mg/dL in conventional units, or 202–416 µmol/L in SI units. This value is measured in serum.

Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population — always use the range printed on the actual result.

Above the range

Common causes of a high Uric Acid

  • Gout
  • Tumor lysis syndrome
  • Renal failure
  • Thiazide diuretics

Below the range

Common causes of a low Uric Acid

  • Wilson disease
  • SIADH
  • Some uricosuric drugs

At the bedside

Nursing considerations

  • Men run higher than women; ranges vary by lab.
  • High levels precipitate gout attacks and can cause urate nephropathy.

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Your notes on Uric Acid

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