对２４４例急诊患者进行了毒理学筛检，其中已知药物中毒６４例，可疑药物中毒１４１例，昏迷查因３９例。结果可疑药物中毒者中阳性１１４例（８０．８％），昏迷查因者中阳性２０例（５１．３％）。引起中毒的药物以苯二氮类最多见，可能与入院的选择性偏倚有关。这些结果说明毒理学筛检在急救医学中有重要作用，为临床诊断和鉴别诊断及设计有效的抢救方案提供了科学依据。 Totally 244 emergency patients were screened for toxicology, of which 64 were known as drug poisoning, 141 were suspected drug poisoning and 39 were coma. The results of suspected drug poisoning were positive in 114 cases (80.8%), coma check-positive in 20 cases (51.3%). The most common cause of poisoning is benzodiazepines, which may be related to the selective bias of admission. These results indicate that toxicological screening plays an important role in emergency medicine and provides a scientific basis for clinical diagnosis and differential diagnosis and design of an effective rescue program.