![citrate](https://www.leedsth.nhs.uk/wp-content/uploads/2023/05/05-CP-Citrate.gif)
A series of coagulation tests to diagnose Von Willebrands disease
Tube
05 (CP) – Citrate
ID
12707
Availability
Weekdays
Additional Information
Tests include prothrombin time (PT), APTT, Fibrinogen, FVIII assay, VWF antigen assay and Ristocetin co-factor activity.
Turn Around
14 days
Send to
Specialist Coagulation
Chancellor / Lincoln Wing Link Corridor
Pathology
Block 32
St James University Hospital
Beckett Street
Leeds
LS9 7TF
Contact
Collection Con
2 x citrate samples. All citrate tubes must be filled to the line please. Samples must be processed within 6 hours of being taken.
Sample REQ
Blood
Ref. Range (Male)
50.2 to 153.8
Ref. Range (Female)
50.2 to 153.8
Ref. Range Notes
Critical telephone values: Any abnormal result if the clinical details state acute bleeding. Ristocetin co-factor less than 10%
Units
iu/dL