What are coagulation factor tests?Coagulation factors are proteins in the blood that help control bleeding. You have several different coagulation factors in your blood. When you get a cut or other injury that causes bleeding, your coagulation factors work together to form a blood clot. The clot stops you from losing too much blood. This process is called the coagulation cascade.Coagulation factor tests are blood tests that check the function of one or more of your coagulation factors. Coagulation factors are known by Roman numerals (I, II VIII, etc.) or by name (fibrinogen, prothrombin, hemophilia A, etc.). If any of your factors are missing or defective, it can lead to heavy, uncontrolled bleeding after an injury.Other names: blood clotting factors, factor assays, factor assay by number (Factor I, Factor II, Factor VIII, etc.) or by name (fibrinogen, prothrombin, hemophilia A, hemophilia B, etc.)
