With a heparin lock, a catheter is placed in the vein, a drop of the blood-thinning medication heparin is added to prevent clotting, and the catheter is locked off.

肝素帽是在静脉里放置导管，添加血液稀释的肝素滴液以预防血管栓塞，而导管被锁住。

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Are taking any blood-thinning drugs (such as warfarin or heparin) or antiplatelet medication (such as aspirin or clopidogrel)

你在服用抗凝药物（比如华法林，肝素）或者抗血小板聚集药物（阿司匹林或氯吡格雷）——一般情况下，在结肠镜检前应明停止服用这些药物，以防出血不止。

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If you are taking an anticoagulant (blood thinning medication) or vitamin k, consult a physician before taking this product.

如果正在服用抗血凝产品(血液稀释剂)，或者正在服用维生素k者，使用前请咨询健康专家。

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