FACTOR IX EVAL

Message
INCLUDES COAGULATION FACTOR IX ACTIVITY AND INHIBITOR

Test Code
FIX EVAL(Wildcode)

Alias/See Also
Coagulation Factor 9 Evaluation
Billcode: 409680

CPT Codes
85250, 85335

Preferred Specimen
SODIUM CITRATE(BLUE TOP)
PLATELET-POOR PLASMA

Minimum Volume
1-3 ML

Instructions
Plasma must be free of platelets (<10,000/mcL). Freeze immediately.

Transport Temperature
FROZEN

Specimen Stability
FROZEN; 14 DAYS

Clinical Significance
Factor IX Activity is useful to evaluate a prolonged aPTT. The second most common form of hemophilia is caused by deficiency of factor IX. Hemophilia B is an x-linked disorder affecting between 1 in 25,000 to 30,000 males.

Factor IX Human Inhibitor provides a quantitative determination of inhibitors. This aids in developing treatment strategies for patients with hemophilia.

Performing Laboratory
QUEST SAN JUAN CAPISTRANO



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.