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What is D-dimer?D-dimer is a breakdown product of blood clots.It is normally undetectable unless the body isforming and breaking down blood clots. Thepresence of D-dimer signals inappropriatelyhigh levels of clotting.What is D-dimer test ordered?The measurement of D-dimer is mainly usedto help rule out clotting formation and to helpdiagnose conditions related to thrombosis suchas deep vein thrombosis (DVT), pulmonaryembolism (PE), and disseminated intravascularcoagulation (DIC). The D-dimer test can alsobe used to monitor treatment of DIC andexcessive clotting conditionFigure: Formation of FDP and D-dimer in fibrinolysisWhat does it mean if the sample tests positive for D-dimer?A positive D-dimer result indicates that there may be significant blood clot (thrombus) formation and breakd...