[Chinese expert consensus on D-dimer laboratory testing and clinical application]

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.