D-dimer is a degradation product deriving from the plasmin-mediated degradation of cross-linked fibrin. It serves as a biomarker for the activation of coagulation and fibrinolysis, and has been extensively utilized in the diagnosis and treatment of various diseases. However, in recent years, issues related to D-dimer laboratory testing and its clinical application have become increasingly prominent. The lack of standardization in reports has led to confusion in both laboratory testing and clinical application. To address this, the Chinese Society on Thrombosis and Hemostasis brought together experts in the field of thrombosis and hemostasis in China to discuss and develop the 'Chinese Expert Consensus on D-Dimer Laboratory Testing and Clinical Application'. This consensus focuses on laboratory testing methods, quality requirements, performance evaluation, sample processing, analysis interference, result reports, and clinical application of D-dimer. Its aim is to optimize the key issues related to D-dimer testing in laboratories and provide guidance for the appropriate use and accurate interpretation of D-dimer in clinical settings.
D-二聚体（D-dimer）是交联纤维蛋白的降解产物，是凝血和纤溶系统激活的重要标志物之一，已在多种疾病的诊断及治疗中得到广泛应用。近年来，随着对D-二聚体研究的不断深入以及检测技术的发展，D-二聚体实验室检测和临床应用方面的问题日渐凸显，报告形式亦缺乏规范性，给实验室检测和临床应用均造成诸多困惑。因此，中国研究型医院学会血栓与止血专业委员会组织国内血栓与止血领域的相关专家商讨并制定了《D-二聚体实验室检测与临床应用中国专家共识》。本共识从实验室检测方法、质量要求与性能评价、样本处理与分析影响因素、结果报告，以及在不同疾病诊疗中的应用问题分别进行了阐述，以期解决D-二聚体在实验室检测中面临的关键问题，为D-二聚体在临床中的合理应用与正确解读提供参考。.