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  2. Mixing study - Wikipedia

    en.wikipedia.org/wiki/Mixing_study

    Fresh normal plasma has all the blood coagulation factors with normal levels. If the problem is a simple factor deficiency, mixing the patient plasma 1:1 with plasma that contains 100% of the normal factor level results in a level ≥50% in the mixture (say the patient has an activity of 0%; the average of 100% + 0% = 50%). [3]

  3. Factor VIII - Wikipedia

    en.wikipedia.org/wiki/Factor_VIII

    Coagulation factor VIII (Factor VIII, FVIII, also known as anti-hemophilic factor (AHF)) is an essential blood clotting protein. In humans, it is encoded by F8 gene . [ 5 ] [ 6 ] Defects in this gene result in hemophilia A , an X-linked bleeding disorder .

  4. Coagulation testing - Wikipedia

    en.wikipedia.org/wiki/Coagulation_testing

    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]

  5. Thromboelastometry - Wikipedia

    en.wikipedia.org/wiki/Thromboelastometry

    The typical assays are not responsive for the effect of von Willebrand factor or platelet antagonists such as aspirin or thienopyridines (e.g. clopidogrel), and only supratherapeutic doses of GPIIb/IIIa antagonists may influence results. The sensitivity for coagulation factor deficiencies, including those induced by oral anticoagulation, is ...

  6. Partial thromboplastin time - Wikipedia

    en.wikipedia.org/wiki/Partial_thromboplastin_time

    The partial thromboplastin time (PTT), also known as the activated partial thromboplastin time (aPTT or APTT), is a blood test that characterizes coagulation of the blood.A historical name for this measure is the Kaolin-cephalin clotting time (KCCT), [1] reflecting kaolin and cephalin as materials historically used in the test.

  7. Thrombin time - Wikipedia

    en.wikipedia.org/wiki/Thrombin_time

    The thrombin time (TT), also known as the thrombin clotting time (TCT), is a blood test that measures the time it takes for a clot to form in the plasma of a blood sample containing anticoagulant, after an excess of thrombin has been added. [1] It is used to diagnose blood coagulation disorders and to assess the effectiveness of fibrinolytic ...

  8. Thrombin generation assay - Wikipedia

    en.wikipedia.org/wiki/Thrombin_generation_assay

    A thrombin generation assay (TGA) or thrombin generation test (TGT) is a global coagulation assay (GCA) and type of coagulation test which can be used to assess coagulation and thrombotic risk. [ 1 ] [ 2 ] [ 3 ] It is based on the potential of a plasma to generate thrombin over time, following activation of coagulation via addition of ...

  9. Factor VIII (medication) - Wikipedia

    en.wikipedia.org/wiki/Factor_VIII_(medication)

    A purified factor VIII concentrate is made from human blood plasma. [14] A recombinant version is also available. [13] People may develop antibodies to factor VIII such that this medication becomes less effective. [15] Factor VIII was first identified in the 1940s and became available as a medication in the 1960s.