Mercury - urine

Last updated: Tuesday, 30, March, 2004

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Item Process
Specimen

24 hour urine collection with special preservatives.

Method

Atomic absorption spectrophotometry.

Reference Interval

<0.20 µmol/24 hours.

Application

Suspected mercury poisoning.

Occupational exposure.

There is no convincing evidence that measurement of urine mercury is useful in the diagnosis of toxicity due to amalgam fillings.

Interpretation

Excretion of >0.5 µmol/24 hours indicates a high probability of mercury poisoning, sufficient to cause symptoms.

Reference

Risher JF et al. Toxicol Ind Health 2002; 18(3): 109-160.