硬膜外麻醉血压下降的机制不包括() ["A．交感神经阻滞","B．血管扩张血容量相对不足","C．心交感神经抑制","D．中枢交感活性下降","E．动脉硬化"]
硬膜外追加局麻药的时机可参照() ["A．距上次给药时间","B．骨骼肌松转紧","C．阻滞平面下移","D．手术部位由无痛转为有痛","E．内脏牵拉反应由轻变重"]
椎管内麻醉包括() ["A．臂丛阻滞","B．蛛网膜下隙阻滞","C．硬膜外间隙阻滞","D．硬膜下间隙阻滞","E．骶管阻滞"]
湿热证多见：()瘀血证多见：() ["面赤身热,口渴喜冷饮","面白舌淡,渴喜热饮","身热不扬,渴不多饮","口干但欲漱水不欲咽","饮一溲二"]
影响脊麻平面的因素有() ["A．穿刺部位","B．病人体位","C．注药速度","D．注药时针口斜面朝向","E．病人身高"]
胃火炽盛可见：()胃强脾弱可见：()
