During autopsy of suspected anaesthetic poisoning,lung excised from hilum is to be preserved in ?

Ans. is 'b' i.e., Metal container In normal toxicological examination one lung is preserved in sealed nylon bag. In case of inhaled anesthetic, intact lung with bronchi ligated should be kept in gas sealed metal/ non plastic containers of appropriate size to avoid empty space and are sealed and refrigerated/ frozen. Alveolar should be collected with needle and syringe by puncturing the lung under water before the chest is opened.