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Test Code F9AS Factor IX Assay, Blood

Additional Codes

Epic Code

LAB308

Performing Laboratory

Bronson Methodist Hospital Laboratory

Reference Values

70-130% of normal

Specimen Requirements

Specimen Type: Whole blood

Container/Tube: Blue top (sodium
citrate)

Specimen Volume: Full tube (4.5 mL)

Collection Instructions:

1. Tube must be filled to minimum indicator line on tube.

2. Gently invert 5 to 10 times to mix blood. Do
not
centrifuge.

3. Place on wet ice immediately.

4. Causes for rejection include tube <75% full and
clotted specimen.

Laboratory Processing Instructions:

1. Spin down, remove plasma, and spin plasma
again
to obtain platelet poor plasma.

2. Separate platelet poor plasma into separate screw top
vials.

3. Freeze plasma immediately.

Specimen Transport Temperature

Ambient (15-25°C) 4 hours/Frozen (<18°  C)
4 weeks if frozen within 4 hours of draw. 

Day(s) Test Set Up

Routine and ASAP:  Monday through Sunday, day shift


STAT:  24/7

Test Classification and CPT Coding

85250