OUTSOURCE
von Willebrand Factor Antigen; vWFAg (H130)
Also Known As:
vWF Ag
von Willebrand Factor
vWF
About This Test
von Willebrand factor (vWF) is important for platelet-platelet & platelet-vessel hemostatic interactions. Decreased vWF antigen is seen in Congenital von Willebrand disease (vWD) and in acquired conditions associated with monoclonal gammopathies, lymphoproliferative disorders and autoimmune diseases. This assay is useful for the diagnosis of vWD and its subtyping. It also helps in differentiating vWD from Hemophilia A. The assay is also useful for monitoring therapeutic efficacy of treatment with vWF concentrates.
Test Parameters (1)
- von Willebrand Factor Antigen; vWFAg
Home Collection
✓ Available
Reports Available In
2 Days
Frequently Asked Questions
Outsourced test are being done from Dr. Lal Path Lab. Charges and reporting time is same as of Dr. Lal Path Labs.
Overnight fasting is preferred. It is recommended that patient discontinues Heparin for 1 day and Oral Anticoagulants for 7 days prior to sampling as these drugs may affect test results. Discontinuation should be with prior consent from the treating Physician.
It is a blood test that measures von Willebrand factor (VWF) protein levels in the blood. VWF is a glycoprotein that contributes to blood clotting, prevents bleeding, stabilises coagulation factor VIII, and links platelets to injured vessels.
TAT Policy
The Turnaround Time (TAT) depends on the following factors:
- Registration date and time
- Type of scan or test
- Scan time or sample collection time
In uncommon circumstances, TAT may be delayed due to test complexity or reasons beyond our control. You will be informed of the estimated TAT at the time of registration.
