深静脉通畅试验
让患者站立,待下肢静脉曲张明显后,在大腿中部扎上止血带,其松紧度可阻断浅静脉血液,嘱患者快速踢腿或做下蹲运动10余次,曲张静脉的充盈度明显减退,说明深静脉通畅良好;如果运动后浅静脉曲张更加明显,张力增高,则表示深静脉不通畅或有阻塞。
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