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:()