Factor Xa (Anti)

Testing Laboratory

Department

Haematology

Delphic Registration Code (Alpha Code)

AFXA, NCOA

Test Code (Numeric Code)

1059

Laboratory Handling

Phlebotomy

Tube must be filled up to the "Fill Line"

Sample Stability

4 hours

Associated Tests

• Coagulation Basic Screening

Synonyms

Factor Xa (Anti)
Anti Xa

Turnaround Time

2 hours

Specimen Type

• Plasma

Specimen Requirements

Tube/Container Type:

Preferred

• Citrate (Blue Cap)

Preferred Sample Volume (ml)

2.7

No of Samples Required

2

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• Citrate (Microtainer)

Aliquot Instructions

Sample Type

• Plasma

Transport to Lab

Ambient (8 - 24 degrees Celsius)
Chilled (2 - 8 degrees Celsius)

Laboratory instruction:
AFXA and whatever other coag screen tests are requested on the form

For other variations see below

on Heparin - H, AFXA, NCOA

on Clexane - C, AFXA, NCOA

on Rivaroxaban - R, RIVA, NCOA

Please code : AFXA and NCOA when the anticoagulant is not mention on the form

Process samples as usual , give copy of form to Haematology.

If Haematology decides ns is unable to perform test, it will be done at Lab+
code FXA

Stability for test add is 2 hours from collection time. Please check with Haematology

Resources

• North Shore Haematology Laboratory Measurement of Uncertainty (MU)

Contact Information