Patent ID: 6902904

Claim:
A dry coagulation assay reagent comprising magnetic particles distributed substantially homogeneously therethrough wherein said reagent is selected from the group consisting of: (1) one member selected from the group consisting of prothrombin time reagents and (ii) prothrombin time reagents and calcium salts; (2) partial thromboplastin time reagents with calcium chloride; (3) partial thromboplastin time reagents with calcium chloride and clot formation activators; (4) thrombin or a snake venom with thrombotic activity; (5) fibrin, or plasminogen and fibrin; (6) plasminogen activator assay reagents containing (i) plasminogen and (ii) either fibrin, a snake venom with thrombotic activity, or thrombin; (7) plasminogen assay reagents containing (i) a plasminogen activator and (ii) either fibrin, a snake venom with thrombotic activity, or thrombin; (8) natural and synthetic plasminogen activators; (9) alpha-2-antiplasmin assay reagents containing fibrin and plasmin; and (10) combinations thereof, wherein the reagent further comprises one or more lanthanide metal compounds that interact with calcium binding sites in a blood coagulation cascade.