Factor IX Assay

Centralized Core Laboratory:Hematology

Test ID/Workstation: FIX ACOAG

Specimen Type: Blood

Tube Type: Blue top (sodium citrate) tube

Collection Volume: 2.7 mL (minimum 1.8 mL)

Must use appropriate sodium citrate tube based on volume of blood drawn (1.8 mL or 2.7 mL)

Cause for rejection: Sample hemolyzed, clotted, diluted with IV fluid; contam with heparin, improperly filled; not kept on ice; received > 1 hr after drawn

Storage: Frozen

Availability: Daily (0700-1500)

Methodology: Photometric/Turbimetric

Special Instructions: Call CCL in advance to schedule test. Indicate the time replacement therapy was administered, amount & type of therapy given, whether the specimen was drawn pre-treatment or post-treatment and the time drawn. Indicate if a specimen has been drawn from an arterial line or a line rinsed with heparin.

If collected at an offsite location, send by a STAT Courier to Hospital lab

Lab/Phone: 330-543-8416

TAT: 4 hours

Additional Info: Reference range:


CPT Code: 85250

Synonyms: Antihemophilic Factor B; Christmas Disease

Requisition Form
View and print a requisition form for this test

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