Specimen Stability (for laboratory use only)
Collection Container
Light blue top (sodium citrate)
Collection Instructions:
Order in a single test request or in combination with VWF Glycoprotein 1b Binding assay and Factor VIII assay
1. Draw sufficient blood into 2 light blue top tubes.
2. Fill blood minimally to the etched fill indicator.
3. Gently invert the tubes 4 times.
4. Send specimen to the laboratory immediately.
Refer to testing laboratory test catalogue for more information:
https://ttsh-intranet/sites/AmbDiagMed/DLM/SitePages/Tests/Von%20Willebrand%20Factor%20Antigen.aspx
1. Draw sufficient blood into 2 light blue top tubes.
2. Fill blood minimally to the etched fill indicator.
3. Gently invert the tubes 4 times.
4. Send specimen to the laboratory immediately.
Refer to testing laboratory test catalogue for more information:
https://ttsh-intranet/sites/AmbDiagMed/DLM/SitePages/Tests/Von%20Willebrand%20Factor%20Antigen.aspx
Unacceptable Conditions:
Clotted,Underfilled,Overfilled,Grossly haemolysed,Whole blood specimens received on ice or refrigerate
Specimen Stability:
Ambient
Not centrifuged: 2 hours
Refrigerate
Frozen
Performance
Turn Around Time:
15 days
Days Test Performed:
Testing Laboratory:
Tan Tock Seng Hospital (TTSH), Haematology Laboratory
Clinical & Interpretative
Description:
Methodology:
Immunoturbidimetric
Reference Interval:
See laboratory report
Critical Values:
N.A.
