One stage factor assay for Refacto FVIII.
Tube
05 (CP) – Citrate
ID
12676
Availability
Daily (available 24/7)
Additional information
Uses an APTT based clotting method to perform a one stage factor assay against a Refacto standard rather than human FVIII. Treatment assays done in Blood Sciences, out of hours.
Send to
Specialist Coagulation
Chancellor / Lincoln Wing Link Corridor
Pathology
Block 32
St James University Hospital
Beckett Street
Leeds
LS9 7TF
Contact
specialist coagulation
Collection Con
Correctly filled citrate tubes. 1 for single factor assay, 2 if associated inhibitor investigations are also required.
Samples must be processed within 6 hours of being taken.
Sample REQ
Blood
Ref. Range Notes
Please note this test is NOT reported against a Normal range as it is used to monitor treatment only, not as a diagnostic test
Critical telephone values: Not a diagnostic test
Units
iu/dL
IP Acute TAT
Contact laboratory
IP Routine TAT
5 days
GP Acute TAT
Contact laboratory
GP Routine TAT
5 days