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Blood Sciences

Blood Test Information

Anti Xa
(a.k.a Heparin -low molecular weight, Factor Xa)
minimum sample volume required ~ 2.7ml

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Tube type: 9NC

Special instructions
Haemolysed samples should not be tested. Time limit for add on = 8 hours

Please note that this test is not accredited to ISO:15189 due to recent changes in equipment. This test has been verified internally and accreditation has been applied for.

Contact Laboratory before requesting

Reference range
Once daily regime therapeutic range: 0.8-1.6 Twice daily regimes therapeutic range: 0.5-1.1


Turnaround Time
1 day

Department: Haematology

Clinical Application
Anti Xa used for monitoring LMW heparin


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