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Toxin-Induced Acute Delirium
1Department of Neurology, University of Pennsylvania, Philadelphia, PA 19104, USA.
Abstract:
Acute delirium is a transient state of cerebral dysfunction reflecting an underlying medical decompensation. Toxicity from medications and other substances are a common cause of delirium. History and laboratory testing may be limited by alteration and lack of specific tests for certain compounds. Classes of compounds produce a constellation of symptoms and examination findings recognized as a toxidrome. Cessation of the offending agent, supportive care, and specific antidotal therapy are key to treatment. This article reviews the presentations of the anticholinergic toxidrome, sympathomimetic toxidrome, hallucinogenic toxidrome, γ-aminobutyric acid withdrawal, and Wernicke encephalopathy, as well as their mechanisms and basic management.
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