Back to Test Catalogue

Factor IX Activity Clotting Assay, Plasma

Test ID: FAC9

Test

Aliases/Synonyms

Coagluation Factor IX

Method

Clotting Assay

Report Includes

Factor IX, Clotting Assay

Specimens

Plasma (Citrate)

Test Version

12-Jul-2024

Specimen

Specimens

Plasma (Citrate)

Collection Containers

Light Blue Tube (Citrate)

Sample Volume

2 mL

Collection & Handling

Handling Information

Prepare platelet poor plasma (double spun) and freeze immediately. Store and send frozen.

Additional Information

Submit separate specimen for each test ordered.

Stability

Ambient 4 hours
Frozen 14 days (-20°C)

Additional Stability Information

Stable up to six months at -70°C. If the specimen thaws, it is unsuitable for analysis.

Rejection Criteria

Hemolysis Gross
Specimen Not frozen

Test Version

12-Jul-2024

Performance / Interpretation

Method

Clotting Assay

Turnaround Time

5 days

Results

Name Units Reference Range Conversion Factor
Coagulation Factor IX, Clotting Assay U/mL
  • Adult: 0.60 - 1.50
  • Pediatric (< 3 days): 0.35 - 0.97
% x 0.0100

Test Version

12-Jul-2024

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
FAC9 29238Factor IX Assay U/mL

Test Version

12-Jul-2024