Gāo / shāo / hé / yán / zhòng / tuō / shuǐ / dōu / kě / néng / dǎo / zhì / lǎo / nián / rén / chū / xiàn / zhān / wàng高烧和严重脱水都可能导致老年人出现谵妄。A high fever and severe dehydration can both cause delirium in older people.