男,4岁。因发热、咳喘4天,昏迷1天住院。体检:T39℃,P180次/分,R60次/分。深度昏迷,气促紫绀,口吐白沫。两肺罗音密布。按重症肺炎并心衰处理。2小时后患儿双手震颤,瞳孔缩小,且疮痂满头,气味特殊,疑为农药中毒。试用阿托品后有好转。追问病史方知在1个半月前,其母反覆用乐果溶液遍擦患儿头部和躯干,以治疗头癣和疥疮。1周前已出现症状,但被误按上感、肺炎治疗。确诊后虽 Male, 4 years old. Due to fever, cough 4 days, coma 1 day hospitalization. Physical examination: T39 ℃, P180 beats / min, R60 beats / min. Deep coma, cyanosis, spit foam at the mouth. Two lungs rang. According to severe pneumonia and heart failure treatment. Two hours later children with tremor hands, miosis, and scabs covered with special smell, suspected of pesticide poisoning. After trial atropine improved. Asked about the history of knowledge in a month and a half ago, the mother repeatedly with the solution of dimethoate over the head and torso of children to treat tinea capitis and scabies. Symptoms have appeared 1 week ago, but the flu was mistakenly pressed, pneumonia treatment. Although confirmed after