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 |
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