CNS Poisons: Alcohol, Barbiturates & Opioids
ModerateHigh-yieldForensic Medicine · Toxicology
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Central-nervous-system depressant poisons dominate forensic toxicology MCQs. This chapter consolidates the three highest-yield CNS depressants — ethyl alcohol (and the lethal methyl alcohol), barbiturates, and opioids — with their medico-legal levels, toxidromes, antidotes, and postmortem appearances. CNS poisons act primarily by depressing the cerebral cortex and brainstem, producing a continuum of excitation → i…
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