What is the cause for elevation of D dimer?

Hi,

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D dimer is a fibrin degraded product, and it is elevated in case of thrombosis usually like pulmonary embolism, deep vein thrombosis. For this, the investigation is done in the form of 2D echocardiography and color doppler of the leg. But you had investigated with CT scan angiography as mentioned in the history (attachment removed to protect patient identity) and it is considered as the preferred test to detect pulmonary embolism. So pulmonary embolism seems less likely.

Calf vein color doppler is done to check deep vein thrombosis. Specific false definite causes for D dimer include pregnancy, inflammation, liver disease, any previous surgery. Also, you can check your coagulation profile through PT (prothrombin time), aPTT (activated partial thromboplastin time), BT (bleeding time).