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Hg (Mercury), Mercury (Hg)
Mercury, Urine 24 Hour (HGU)
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.
To avoid contamination by dust, specimen should be collected away from the site of suspected exposure.
The correlation between the levels of mercury (Hg) excretion in the urine and the clinical symptoms is considered poor.
It had always been thought that urine was a more appropriate marker of inorganic mercury, because organic mercury represented only a small fraction of urinary mercury. Based on possible demethylation of methylmercury within the body, urine may represent a mixture of dietary methylmercury and inorganic mercury. Seafood consumption can contribute to urinary mercury levels (up to 30%), which is consistent with the suggestion that due to demethylation processes in the human body, a certain proportion of urinary mercury can originate from dietary consumption of fish/seafood.
0-17 years: Not established.>= 18 years: <2 mcg/24 hour Toxic concentration: >50 mcg/24 hour
The concentration at which toxicity is expressed is widely variable between patients. 50 mcg/24 hour is the lowest concentration at which toxicity is usually apparent.