Christmas Disease

Alternate Name: Factor IX Deficit

Test:

Clotting time (H), prothrombin consumption test(AB), thrombin time (N), partial thromboplastin time (H), bleeding time (N or H), prothrombin time (N)

Sign:

Dd:

Other hereditary coagulation disorders, anticoag-ulant therapy

Phys:

An hereditary lack of factor IX in the intrinsic blood clotting pathway