报告一起将市售 2 0 %浓度的百草枯除草剂误认为食用酱油 ,少量多次经口误服 ,而致集体中毒。误服剂量超过致死量 ,误诊误治达 2 0多天 ,中毒除肺脏为最敏感的靶器官外 ,还伴有多脏器损害。治疗应注意 ,早期保护由超氧化物阴离子自由基及过氧化氢引起的肺肝等脏器组织细胞损害 ,清除自由基 ,避免氧疗及积极治疗多脏器损伤等。病人均有 3年以上饮酒史 ,死亡率 33 % ,比文献报道的低 ,考虑乙醇可能减低了其毒性 The report together with 20% of the concentration of paraquat herbicide mistaken for food soy sauce, a small amount of oral misdose, resulting in collective poisoning. Misdiagnosed dose exceeded the lethal dose, misdiagnosis and mistreatment for more than 20 days, except lung poisoning is the most sensitive target organ, but also accompanied by multiple organ damage. Treatment should be noted that the early protection by superoxide anion radicals and hydrogen peroxide caused lung and other organ tissue damage, free radical scavenging, to avoid oxygen therapy and active treatment of multiple organ injury and so on. Patients have a history of drinking more than 3 years, the mortality rate of 33%, lower than reported in the literature, considering ethanol may reduce its toxicity