V2EX prothrombin time

Prothrombin Time

定义(Definition)

Prothrombin time(PT,凝血酶原时间):一种血液凝固功能检测,用于测量血浆在外源性凝血途径(主要涉及凝血因子 I、II、V、VII、X)作用下形成凝块所需的时间。常用于监测华法林(warfarin)抗凝治疗、评估肝功能相关凝血障碍,以及筛查维生素K缺乏等情况。(临床上常与 INR 一并报告。)

发音(Pronunciation, IPA)

/proθrmbn tam/

例句(Examples)

The doctor ordered a prothrombin time test.
医生开了凝血酶原时间(PT)检测。

Because the patient was taking warfarin, her prothrombin time and INR were checked regularly to reduce the risk of bleeding.
由于患者正在服用华法林,她的凝血酶原时间(PT)和 INR 需要定期监测,以降低出血风险。

词源(Etymology)

prothrombin 源自希腊语词根:pro-(“在……之前”)+ thrombos(“血栓、凝块”),表示“生成凝血酶(thrombin)之前的物质”,即凝血酶原(凝血因子 II)。time 表示“时间”。合起来就是“测量凝血酶原相关凝血过程所需的时间”。

相关词(Related Words

文献与作品示例(Literary / Notable Works)

  • Harrison’s Principles of Internal Medicine(《哈里森内科学》)中在抗凝治疗与凝血功能评估章节常提及 prothrombin time
  • Robbins and Cotran Pathologic Basis of Disease(《罗宾斯病理学》)在止血与血栓形成相关内容中涉及 PT 的临床意义。
  • The Merck Manual(《默克手册》)在凝血检测与出血性疾病条目中使用 prothrombin time
  • CHEST(期刊)与抗凝治疗指南/综述中频繁出现 prothrombin timeINR 的监测表述。
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