D-Dimer

Products of a blood clot degeneration or breakdown. Can be the result of plasmin degrading fibrin into D-Dimer (Two Cross-linked D fragments of fibrinogen protein). Hence it's a type of FDP. Usually increased after thrombotic events and Disseminated Intravascular Coagulation (DIC).

Note: D-Dimer levels can be used to exclude thrombosis if the probability of thrombosis is low and the D-Dimer is negative (good negative predictive value).