Neuropsychological impairment following inorganic arsenic exposure

Karen Bolla-Wilson, Margit L. Bleecker

Research output: Contribution to journalArticlepeer-review


A 50-year-old chemical engineer, routinely screened for occupational arsenic exposure, was admitted with a delirium for which no known etiology was found. Elevated levels of arsenic were found in the urine and hair. The patient received chelation treatment with British anti-Lewisite; substantial amounts of arsenic were excreted and the toxic encephalopathy improved gradually over the 8-month follow-up period. The patient was tested at 6 weeks, 4 months, and 8 months postdelirium with a battery of neuropsychological tasks. The pattern of results showed verbal learning and memory to be severely impaired while tests of general intellectual abilities and language remained unaffected. Follow-up examinations with no subsequent reexposure revealed improvements on specific cognitive tasks. It is unclear whether recovery of cortical functions occurred or if compensatory strategies were developed. It is proposed that a subacute exposure to arsenic may have contributed to the neuropsychological deficits.

Original languageEnglish (US)
Pages (from-to)500-503
Number of pages4
JournalJournal of Occupational Medicine
Issue number6
StatePublished - Jun 1987

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health


Dive into the research topics of 'Neuropsychological impairment following inorganic arsenic exposure'. Together they form a unique fingerprint.

Cite this