Bethesda Titer
9 days
The factor IX inhibitor (Bethesda Titer) assay is performed using an activated partial thromboplastin time (aPTT)-based test system.
Test Includes: Activated partial thromboplastin time (aPTT), aPTT 1:1 mix with normal plasma, aPTT 1:1 mix with normal plasma (60-minute control), aPTT 1:1 mix with saline, factor IX activity, factor IX Bethesda titer
Accredited Laboratory Partner
Contact Technical Support
Detailed evaluation of inhibitors to Factor IX. Guides hemophilia management.
Plasma
6 mL (2 mL in each of 3 tubes)
Blue top (sodium citrate) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Citrated Plasma samples should be collected by double centrifugation
| Temperature | Period |
|---|---|
| Frozen | Contact Technical Support |
Bethesda Titer
9 days
The factor IX inhibitor (Bethesda Titer) assay is performed using an activated partial thromboplastin time (aPTT)-based test system.
Test Includes: Activated partial thromboplastin time (aPTT), aPTT 1:1 mix with normal plasma, aPTT 1:1 mix with normal plasma (60-minute control), aPTT 1:1 mix with saline, factor IX activity, factor IX Bethesda titer
Accredited Laboratory Partner
Contact Technical Support
Detailed evaluation of inhibitors to Factor IX. Guides hemophilia management.
Plasma
6 mL (2 mL in each of 3 tubes)
Blue top (sodium citrate) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Citrated Plasma samples should be collected by double centrifugation
| Temperature | Period |
|---|---|
| Frozen | Contact Technical Support |