Clinical background:
This assay is used to monitor the plasma concentration of the oral direct Anti-Xa inhibitor Apixaban (Eliquis). It is an Anti-Xa assay using specific calibrators
Specimen container paediatric:
Light blue – sodium citrate
Specimen container adult:
Light blue – sodium citrate
Minimum volume paediatric:
1.3 ml
Minimum volume adult:
2.7mL
Special requirements:
Tube must be correctly filled to line, to ensure correct ratio of blood to anticoagulant, ensure adequate mixing.
Sample stability:
2 hrs
Transport requirements:
Samples should be transported to lab without delay
Availability:
All times, both sites
Freq analysis:
On request
Add on test:
[email protected] (external)
Quality assurance:
UK NEQAS Blood Coagulation
Reference ranges:
Therapeutic levels are dependent on dose and reason for anticoagulation, please discuss with Haematologist. Further information is available in the 2014 BCSH guidelines. Measurement of non-Coumarin anticoagulants and their effects on tests of Haemostasis