Von Willebrand Panel
Von Willebrand factor antigen and activity with factor VIII.
3 tests explainedAlso printed as vWF Panel, Von Willebrand Disease Panel, VWD Profile
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Type the results from your report. Each one is placed on its usual range, with its status in words.
Type the results from your Von Willebrand Panel report. Each one is placed on its usual range as you type.
Nothing you type here leaves your browser. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.
The 3 tests in this panel
What each one measures and the range labs usually print for adults. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.
von Willebrand Factor Antigen (VWF:Ag)
Measures how much von Willebrand factor is in your blood. It is usually ordered with VWF activity and factor VIII to look into von Willebrand disease.
- 18+
- 52–214 %
von Willebrand Factor Activity (Ristocetin Cofactor / GPIb Binding)
Measures how well von Willebrand factor helps platelets stick to a wound. It is one of the main tests used to look into von Willebrand disease.
- 18+
- 51–215 %
Factor VIII Activity
Measures how well factor VIII, a clotting protein that is low in hemophilia A, is working in your blood.
- Adults
- 55–200 %
Labs can include 2 more tests in this panel that we haven’t written up yet.