Coagulation Factor Assays


Test Information

Test Name

Coagulation Factor Assays

Synonyms

FII; FIX; FVII; FVIII; FIX; FX; FXI; FXII; FXIII; Chromogenic factor assays

Preferred Specimen

Citrate x 2 per assay

Testing Location

Referral


Collection Information

Preparation

  • Clinical must direct tests to be performed.
  • For all Factor Assays: Double spin citrates, separate & freeze within 8 hours of collection
  • For all Chromogenic Factor Assays: Double spin citrate, separate & freeze within 4 hours of collection
  • For all Inhibitor Screen: Double spin citrate, separate & freeze within 6 hours of collection

Processing Information

Registration Code

See notes

Notes

  • Test code FACA = All factors between I - XII excluding Xa
  • Test code FII = Factor II (2)
  • Test code FVII = Factor VII (7)
  • Test code FACT = Factor VIII (8)
  • Test code FACH = Factor VIII Inhibitor
  • Test code F8CR = Factor VIII Chromogenic Assay
  • Test code FACR = Factor IX (9)
  • Test code F9CR = Factor IX Chromogenic Assay
  • Test code F10 = Factor X (10)
  • Test code A10 = Factor Xa/Anti Xa
  • Test code F11 = Factor XI (11)
  • Test code F12 = Factor XII (12)
  • Test code XIII = Factor XIII (13)

Site Specific Notes

- Waikato

Ring & inform Waikato Hospital Haematology Department for any urgent factor assays


Methodology

Contact Information

alan.neal@pathlab.co.nz

External Referral Information

Referral Location

Waikato Hospital Laboratory

Send Away Notes

Any urgent factor assays or inhibitor studies, e-mail coagulation@waikatodhb.health.nz with patient NHI and investigation being requested.