proximal clot

例句：

1. 1. Proximal clots are a common cause of blood clotting.
   近端血栓是导致血液凝固的常见原因。
2. 2.The patient was diagnosed with proximal clots, which required immediate treatment.
   患者被诊断出有近端血栓，需要立即治疗。
3. 3. The doctor advised the patient to avoid activities that could increase the risk of proximal clots.
   医生建议患者避免增加近端血栓风险的活动。