下肢深静脉血栓形成急性期可出现() ["A.浅静脉明显曲张","B.小腿剧痛,患足不能着地踏平","C.患肢皮温降低呈青紫色","D.突发全下肢肿胀","E.患肢小腿和足背可出现水疱"]
枸橼酸钠的抗凝原理是() ["A.阻止凝血酶的形成","B.与血液中的钙离子形成螯合物","C.除去球蛋白","D.阻止血小板聚集","E.除去纤维蛋白原"]
检查静脉交通支瓣膜功能的试验有() ["A.Trendelenburg试验Ⅰ","B.Trendelenburg试验Ⅱ","C.Perthes试验","D.Prett试验","E.Buerger试验"]
单纯作浅静脉高位结扎术的指征应是() ["A.深静脉瓣膜功能失常","B.浅静脉瓣膜功能不全,交通支瓣膜功能不全","C.浅静脉瓣膜功能不全,深静脉瓣膜功能正常","D.试验交通支瓣膜功能正常","E.深浅静脉瓣膜功能均失常"]
深静脉血栓形成静脉造影的X线表现有() ["A.深静脉主干部分或全部不显影","B.静脉管腔不规则狭窄,部分扩张甚至扭曲","C.造影剂在深静脉主干某一平面突然中断","D.主干静脉内造影剂充盈缺损,可出现“轨道征”","E.常无侧支静脉显影"]
背景: