extrinsic coagulation

例句：

1. 1. The patient's blood was tested for extrinsic coagulation to determine the cause of his bleeding.
   为了确定出血的原因，医生对患者的血液进行了外源凝血测试。
2. 2. During surgery, the surgeon used an extracorporeal machine to facilitate extrinsic coagulation.
   在手术中，外科医生使用一台体外机器来促进外源凝血。
3. 3. The treatment involved administering a medication that enhances extrinsic coagulation in the body.
   治疗涉及给予一种药物，以增强体内外源凝血。