A biopsy is a medical test commonly performed by a surgeon, interventional radiologist, or an interventional cardiologist involving extraction of sample cells or tissues for examination to determine the presence or extent of a disease. The tissue is generally examined under a microscope by a pathologist, and can also be analyzed chemically.
in fibrin. ...from fibrinogen, a soluble protein that is produced by the liver and found in blood plasma. When tissue damage results in bleeding, fibrinogen is converted at the wound into fibrin by the action of thrombin, a clotting enzyme.
Description. Prothrombin (factor II) is the precursor of thrombin in the coagulation pathway; it is synthesized in the liver, much as other vitamin Kâdependent proteins are, and has a molecular weight of 72 kd. The plasma half-life of prothrombin is approximately 60 hours. The prothrombin gene is found at 11p11-q12) on chromosome 11. Mutation at position 20210 of the gene results in thrombophilia. The prevalence of factor II G20210A in Caucasian populations is estimated to be in the range of 1-6%.