Test Category: Haematology
Investigation Name:Warfarin Levels

Pathology Laboratory:Haematology Laboratory (Referred Test)
Requestable Seperately?Yes
Minimum Sample Volume:3.0 mL
Expected Turnaround Time:4 weeks
Test Code:WARF
Sample Type:
Sodium Citrate Tube (Blue top)Collection Conditions / Other Information:Samples are sent Mon-Thurs via first class post.
Samples are only sent with the approval of a Consultant Haematologist.
Reference Laboratory Details:Haemophilia Centre
Vitamin K Lab
1st Floor North Wing
Lambeth Place Road
St. Thomas’ Hospital
London
SE1 7EH
Referred to Another Laboratory?Yes
Posting Address / Requirements:Send via 1st Class Post
Further information:If for Warfarin levels send plasma or serum.
For Warfarin Resistance Gene (Vitamin K Reductase Gene) send an EDTA tube.
Contact Number:0207 1886816