强心甙治疗阵发性室上性心动过速的机制为() ["A．缩短心房不应期","B．兴奋迷走神经，减慢房室传导","C．降低窦房结自律性","D．增强心肌收缩力","E．降低普肯野纤维的自律性"]
治疗强心甙中毒所引起的心动过缓或房室传导阻滞，可用() ["A．钾盐静脉滴注","B．阿托品","C．苯妥英钠","D．钾盐口服","E．利多卡因"]
站立时在大腿上1/3处扎止血带，让患者做下肢蹬站运动20次后，浅静脉塌陷或张力明显降低说明() ["A．下肢深静脉通畅","B．大隐静脉功能正常","C．小隐静脉功能正常","D．交通支瓣膜功能关闭不全","E．下肢深静脉阻塞"]
甘露醇()氢氯噻嗪()乙酰唑胺()螺内酯()速尿() ["A．提高血浆渗透量","B．髓袢升支皮质部","C．远曲小管和皮质集合管","D．近曲小管","E．髓袢升支髓质部"]
下肢静脉曲张术后鼓励患肢早期活动的意义是防止() ["A．肺部并发症","B．深静脉血栓形成","C．小腿肌肉萎缩","D．下肢创面出血","E．压疮"]
氢氯噻嗪()乙酰唑胺()速尿()甘露醇()
