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Original Articles

Sensitive Indicators of Inorganic Mercury Toxicity

, , , &
Pages 208-215 | Accepted 27 Jan 1986, Published online: 03 Aug 2010
 

Abstract

Forty-two workers from a chemical plant producing inorganic mercury compounds were evaluated for neurologic, nephrotic, and ophthalomogic toxicity. Despite elevated blood and urinary mercury levels, routine clinical testing such as physical examination, blood chemistries, and urinalysis were generally normal. These findings from the routine examination are in contrast to the complaints of neuropsychological symptoms, elevated urinary n-acetyl B-D-glucosaminidase (NAG) levels, decreased motor nerve conduction velocities, and the presence of lenticular opacities on slit-lamp examination that were found, when organ systems known to be affected by mercury were targeted. More sensitive but objective indicators of toxicity need to be included in routine medical screening so as to help diagnose the etiology of neuropsychological symptoms and prevent long-term sequelae in workers exposed to mercury.

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