FACTOR IX ACTIVITY

Test Documentation
Specimen Required
Draw blood in a light blue 3.2% sodium citrate tube. See appendices for coagulation test collection instructions. Send 2.0 mL plasma (1.0 mL minimum) frozen in a screw-capped plastic vial.

Rejection Criteria
Serum, non-frozen or hemolyzed specimens

Methodology
Clotting

Stability
Room Temperature: 4 hours; Refrigerated: 4 hours; Frozen: 14 days

Reference Range
1-4 days:   15-91%  
5-29 days:   15-91%  
30-89 days:   21-81%  
90-179 days:   21-113%  
180-364 days:   36-136%  
1-5 years:   47-104%  
6 years:   63-89%  
7-9 years:   70-133%  
10-11 years:   72-149%  
12-13 years:   73-152%  
14-15 years:   80-161%  
16-17 years:   86-176%  
18 years and older:   78-184%  

Performed
Monday-Friday

Turnaround Time5-7 days
Test CodeF9AR
CPT-4 Code (s)
85250
LOINC Codes
3187-2

Warde
Medical
Laboratory