Von Willebrand Factor Antigen | KK Women's and Children's Hospital

Specimen Container	Sodium Citrate Tube
Specimen Requirement	Citrated Whole Blood Adult: 2 mL Paediatric: 1 mL
Orderable as Urgent?	No
Turn Around Time	1 week
Reference Value(s)	-
Testing Laboratory Location	SGH
Laboratory	Haematology
Contact Number	6394 1352
Day and Time Performed	Weekly
Orderable on CPOE?	Yes
Downtime Form	63170-Form-1080 Haematology Laboratory Downtime Form
Additional Information	Fill blood up to the black marking on tube and mix well. Overfilling of blood may cause clotting Under filling may cause dilution of clotting factors. Test for Riscocetin co-factor and Factor VIII activity is recommended in conjunction with this test.

Change History Notes

Last Updated - 27 May 2025