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Von Willebrand Factor activity assay

Test Code:

CG0115

Synonym(s):

Specimen Container

Sodium Citrate Tube

Specimen Requirement

Citrated Whole Blood
Adult: 3 mL
Paediatric: 1 mL

Specimen Storage / Transport

Requires urgent specimen transportation to SGH laboratory.

Method

 

Orderable as STAT?

No

Turn Around Time

1 week

Reference Value(s)

50 - 187%

Testing Laboratory Location

SGH

Laboratory

Haematology

Contact Number

6394 1352

Day and Time Performed

Weekly

Orderable on CPOE?

Yes

Additional Information

Fill blood up to the black marking on tube and mix well. Overfilling of blood may cause clotting. Under filling cause dilution of clotting factors. Test for Von-Willebrand factor antigen is recommended in conjunction with the above test.

Change History Notes

Others

Keywords

Von Willebrand Factor activity assay ristocetin co-factor Ristocetin CG0115
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