Apixaban, Anti-Xa

Synonyms

• ANTIXA
• APIXABAN ANTI-XA
• ELIQUIS
• LAB11110

Cerner Name

Apixaban Anti-Xa

Clinical Info

Limitations: This chromogenic anti-Xa assay calibrated with an apixaban standard can accurately determine apixaban concentration in plasma;
however, the APIX Test is not specific for apixaban and will detect any anti-Xa anticoagulant medications, including unfractionated heparin, 
low molecular weight heparin, fondaparinux, rivaroxaban, and edoxaban. In patients transitioning between apixaban and heparin medications, 
the APIX Test is unable to provide specific anticoagulant drug levels.

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Container

Container: Blue Top Tube
                  Plasma

Collection Instructions

TUBE MUST BE FULL AT COLLECTION. Whole blood should remain at ambient temperature until processed. 
Refer to Coagulation Specimen Handling prior to collection. Double spin before freezing—see Coag Spec Processing step 3. 
Submit 2 x 0.5 mL frozen plasma aliquots for this test. Draw blood in light blue tube(s). Spin down, remove plasma, 
spin plasma again and place citrate platelet-poor plasma in the required number of plastic vials (Glass vials cannot be accepted.) 
Freeze specimen at ≤ -40° C if possible. Send specimen frozen on dry ice. 
Each coagulation assay requested should have one tube per test.

Specimen Volume

1 mL Frozen Plasma from Light Blue tube

Transport Instructions

Frozen

Specimen Stability

Frozen: 6 Months

Methodology

chromogenic anti factor Xa assay on the ACL TOPS coag instrument

Days Performed

Daily

Performing Laboratory

NSLIJ Long Island Jewish

CPT

80299

PDM

2055739

Only Orderable at Locations:

Orderable Everywhere

Results

Result Interpretation

Forms