Chromogenic anti-Xa assay for antithrombin (AT) activity in human citrated plasma. Uses human Factor Xa. CE-IVD / 510(k).

AT deficiency — classified into Types I and II — is the most thrombogenic hereditary thrombophilia. Type I: reduced AT concentration and activity. Type II: normal concentration but reduced activity at reactive site (RS), heparin binding site (HBS), or both (pleiotropic).

• Anti-Xa method with human Factor Xa — physiologically relevant
• CE-IVD and 510(k) cleared
• 2 × 2.5 mL presentation