9 days
Chromogenic anti-Xa. Apixaban inhibition of factor Xa (present in excess). Residual Xa is measured using a chromogen and is inversely proportional to the apixaban present.
Accredited Laboratory Partner
Contact Technical Support
Anti-Xa assay calibrated for apixaban. Provides indirect measurement of anticoagulant effect.
Plasma
1 mL
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.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Room temperature | 6 hours |
| Frozen | 12 months |
9 days
Chromogenic anti-Xa. Apixaban inhibition of factor Xa (present in excess). Residual Xa is measured using a chromogen and is inversely proportional to the apixaban present.
Accredited Laboratory Partner
Contact Technical Support
Anti-Xa assay calibrated for apixaban. Provides indirect measurement of anticoagulant effect.
Plasma
1 mL
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.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Room temperature | 6 hours |
| Frozen | 12 months |