Casandra
Casandra Test Code QD78024Version 1 (DRAFT)
Performing Lab
Factor IX Activity and Human Inhibitor
Also known as: APTT, Bethesda Titer, Factor IX Inhibitor Panel
Clinical Use
Order TestUse
Not provided.
Special Instructions
Not provided.
Limitations
Not provided.
Test Details
Methodology
Other
Biomarkers
Factor IX activity (clotting)
OtherClotting activity • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Factor IX inhibitor
OtherInhibitor presence • Other • Binary (Detected / Not Detected)
Result Turnaround Time
3 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Plasma
Volume
2 mL Platelet Poor Plasma (x2)
Minimum Volume
1 mL Platelet Poor Plasma (x2)
Container
Light Blue-top (sodium citrate) tube
Collection Instructions
Centrifuge light blue-top tube for 15 minutes at approximately 1500 g within 60 minutes of collection. Remove plasma avoiding buffy layer. Centrifuge second time. Plasma must be free of platelets (<10,000/mcL). Freeze immediately and send frozen.
Storage Instructions
Freeze immediately and send frozen. Do not thaw.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | 14 Days |