Retired Concept Plasminogen Activator Inhibitor-1 Antigen Measurement true Plasminogen Activator Inhibitor-1 Antigen Measurement Plasminogen_Activator_Inhibitor-1_Antigen_Measurement The determination of the amount of plasminogen activator inhibitor-1 antigen present in a sample. Laboratory Procedure Retired_Concept A13|C39650 Wed Sep 03 10:53:41 EDT 2025 - See 'Plasminogen Activator Inhibitor-1 Measurement(C82030)' C81989 C64430 Plasminogen Activator Inhibitor-1 Antigen Measurement