V2EX activated partial thromboplastin time

Activated Partial Thromboplastin Time

释义 Definition

活化部分凝血活酶时间(aPTT):一种血液凝固功能检测,用于评估“内源性凝血途径”和“共同途径”的凝血时间,临床常用于监测普通肝素(unfractionated heparin)治疗效果,以及筛查某些凝血因子缺乏或抑制物(如狼疮抗凝物)等异常。也常写作 aPTT

发音 Pronunciation (IPA)

/ktvetd prl θrmbplstn tam/

例句 Examples

The nurse checked the activated partial thromboplastin time before adjusting the heparin dose.
护士在调整肝素剂量前检测了活化部分凝血活酶时间(aPTT)。

Because the patient’s activated partial thromboplastin time was markedly prolonged, the team evaluated for factor deficiencies and lupus anticoagulant before proceeding with surgery.
由于患者的活化部分凝血活酶时间明显延长,医疗团队在手术前进一步评估是否存在凝血因子缺乏以及狼疮抗凝物。

词源 Etymology

该术语由三部分构成:activated(活化的)指在实验中加入“活化剂”(如高岭土、硅藻土等)以加速并标准化反应;partial thromboplastin(部分凝血活酶/部分凝血酶原激酶相关试剂)源于早期凝血试验所用的磷脂类试剂(不含组织因子,因此称“部分”);time(时间)即从加入试剂到形成凝块所需的时间。临床上常简称 aPTT

相关词 Related Words

文献与著作 Literary / Notable Works

  • Harrison’s Principles of Internal Medicine(《哈里森内科学原理》)
  • Robbins & Cotran Pathologic Basis of Disease(《罗宾斯-科特兰病理学基础》)
  • Wintrobe’s Clinical Hematology(《温特罗布临床血液学》)
  • Williams Hematology(《威廉姆斯血液学》)
  • AABB Standards 与常见医院检验/输血指南(涉及aPTT在抗凝监测与凝血评估中的应用)
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