Factor IX Inhibitor Titer  Email this article           Printer friendly page

Primary Name Factor IX Inhibitor Titer
Synonym Bethesda Titer for Factor IX Inhibitor
Synonym --
Contraction FIX Inhibitor
Contraction FIX Inh
Contraction --
UAB Procedure Number 2500510
CPT Code 85730, 85732, 85250, 85335
Specimen Collect one (1) blue-stopper tube (3.2% sodium citrate), filled to specified volume. Do not underfill or overfill.

Specimen Management Centrifuge blue-stopper tube within 1 hour of collection, separate plasma and test or quick-freeze at -70°C.
Specimen Accepted Daily including weekends
Test Performed Monday-Friday.
Available Stat? No.
Description Factor IX inhibitors are IgG alloantibodies specific for therapeutic factor IX. Factor IX inhibitors appear in 1 to 6% of severe hemophilia B patients. Inhibitors typically neutralize therapeutic factor IX concentrates making it necessary to provide patients with alternative therapy.
Reference Interval None detected
Critical Value --
Therapeutic Range --
Follow-up Test --
Associated With Bleeding disorders
Associated With Coagulation factor inhibitors
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