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D-dimer. D-dimer (or D dimer) is a dimer that is a fibrin degradation product (or FDP), a small protein fragment present in the blood after a blood clot is degraded by fibrinolysis. It is so named because it contains two D fragments of the fibrin protein joined by a cross-link, hence forming a protein dimer. [1]
Fibrin degradation product. Principles of D-dimer testing. Fibrin degradation products ( FDPs ), also known as fibrin split products, are components of the blood produced by clot degeneration. [1] Clotting, also called coagulation, at the wound site produces a mass of fibrin threads called a net that remains in place until the cut is healed.
A D-dimer (product of thrombi degradation) test can be specified separately. The rise of D-dimers concentration in the patient's blood states the possibility of the completed thrombosis. To obtain a complete picture of the work of hemostasis by a patient, the doctor should have a possibility to choose which test is necessary. [citation needed]
Deep vein thrombosis. Deep vein thrombosis ( DVT) is a type of venous thrombosis involving the formation of a blood clot in a deep vein, most commonly in the legs or pelvis. [9] [a] A minority of DVTs occur in the arms. [11] Symptoms can include pain, swelling, redness, and enlarged veins in the affected area, but some DVTs have no symptoms. [1]
Pulmonary embolism. Pulmonary embolism ( PE) is a blockage of an artery in the lungs by a substance that has moved from elsewhere in the body through the bloodstream ( embolism ). [6] Symptoms of a PE may include shortness of breath, chest pain particularly upon breathing in, and coughing up blood. [1]
t. e. Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry ...
Disseminated intravascular coagulation ( DIC) is a condition in which blood clots form throughout the body, blocking small blood vessels. [1] Symptoms may include chest pain, shortness of breath, leg pain, problems speaking, or problems moving parts of the body. [1] As clotting factors and platelets are used up, bleeding may occur. [1]
Hyperfibrinolysis describes a situation with markedly enhanced fibrinolytic activity, resulting in increased, sometimes catastrophic bleeding. Hyperfibrinolysis can be caused by acquired or congenital reasons. Among the congenital conditions for hyperfibrinolysis, deficiency of alpha-2-antiplasmin [1] (alpha-2-plasmin inhibitor) or plasminogen ...
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