Analysis of antithrombin III level (Anti Thrombin III, Citrated Plasma) is a test used to determine the level of antithrombin III protein in plasma, which is an important factor in regulating the blood clotting process. This test is considered a valuable tool for diagnosing and monitoring disorders associated with blood clotting, such as antithrombin deficiency syndrome, which may lead to an increased risk of thrombosis. The analysis also helps evaluate the effectiveness of anticoagulant therapy and is used to guide treatment options for patients with blood coagulation disorders.