...a rapid-sequence induction: anesthesia is most commonly induced by the method of rapid-sequence induction, in which rapid administration of an ultra-short-acting barbiturate （e.g., thiopental） is followed by a depolarizing muscle relaxant （e.g., succinylcholine）. this allows anesthesia to be induced within 30 seconds and the trachea to be intubated within 60-90 seconds. oxygen is usually given by mask beforehand to allow maximum time for intubation while the patient is apneic. a non-depolarizing neuromuscular blocking drug （e.g., vecuronium, atracurium, or pancuronium） can be substituted for succinylcholine, but the onset of paralysis is delayed by about 60 seconds. a. 快速序贯诱导：诱导麻醉最常用的是快速序贯诱导方法，应用此法时先快速给予超短时作用的巴比妥（如硫贲妥钠），接着给去极化的肌肉松弛剂（如琥...

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