Factor X Antigen
Use
Measurement of factor X antigen concentration
Special Instructions
Not provided.
Limitations
This test may be considered investigational by certain payers, including Medicare, and may not be covered as a medical benefit. The procedure has not been established as a diagnostic test for Factor X deficiencies without confirmation by another medically recognized method. As a research-use only test, the performance characteristics are not fully defined, and results should be corroborated externally before making clinical decisions.
Methodology
Immunoassay (ELISA)
Biomarkers
Factor X Antigen
Protein
LOINC Codes
- 3221-9 - Fact X Ag Act/Nor PPP IA
Result Turnaround Time
4-8 days
Related Documents
For more information, please review the documents below
Specimen
Plasma
Volume
2 mL
Minimum Volume
1 mL
Container
Blue-top (sodium citrate) tube
Collection Instructions
Citrated plasma samples should be collected by double centrifugation. Collect blood in a blue-top tube containing 3.2% buffered sodium citrate. Mix gently by inversion six times. No discard tube is needed unless using a winged device. Centrifuge for 10 minutes and carefully transfer plasma to a plastic transport tube, freeze immediately.
Storage Instructions
Freeze immediately and maintain frozen until testing.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Stable for eight hours. |
Other tests from different labs that may be relevant