The price of D-dimer test, generally in the range of$60-80, while in different levels of hospitals and different regions, the price will fluctuate. D-dimer is a cross-linked fibrin degradation product, a metabolite specific to secondary fibrinolysis. d-dimer is negative in normal people, but if it appears positive, it indicates the presence of secondary fibrinolysis. d-dimer positivity can be seen in pathological conditions such as deep vein thrombosis, pulmonary thromboembolism, and diffuse intravascular coagulation. Also, certain thrombotic disorders may show a significant increase in D-dimer when thrombolytic therapy is administered. Especially in diffuse intravascular coagulation, if the D-dimer concentration continues to increase, often the disease throw continues to progress and anticoagulation therapy needs to be given.