Having the prothrombin mutation increases the risk of developing a DVT (a blood clot in the deep veins, typically the legs) and/or PE (blood clot that travels to the lungs). DVTs are dangerous because they can damage the veins, leading to pain and swelling, and sometimes to disability.
A Clinical Research Associate (CRA), also called a clinical monitor or trial monitor, is a health-care professional who performs many activities related to medical research, particularly clinical trials.
1 Liver Enzymes: This is used to check the function of the live, due to the liver being a common organ for CRC to metastasize.  Tumor Markers: CRC cells can sometimes produce bi-products that are released into the bloodstream. Two examples of these are Carcinoembryonic Antigen (CEA and CA 19-9).