Test ID: 704523 CPT code: 85240, 85730, 85732 (x3) Synonyms: Bethesda Titer Factor VIII Inhibitor Profile, Comprehensive Clinical Use: Confirmation and characterization of factor VIII inhibitor Test Information: Factor inhibitors (also called circulating anticoagulants or inactivators) are endogenously produced antibodies that interfere with coagulation in vivo or in vitro. These inhibitors are frequently specific for their respective coagulation factors. Specific factor …