von Willebrand Factor Antigen
von Willebrand factor acts as the molecular adhesive allowing platelets to stick to vessel walls to halt bleeding.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
50 – 150 %
50 – 150 %
50 – 150 %
What does a low result mean?
A slightly lower level (40-50%) is very common in blood group O individuals without causing bleeding complications.
What does a high result mean?
An elevated level is common as an acute-phase reactant during transient inflammation, exercise, or pregnancy.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Does my ABO blood group explain this baseline variation?
- Is this reassuring ahead of dental or surgical procedures?
- Would testing von Willebrand activity (RCo) provide additional confirmation?
Do you have a full blood test report?
Upload your lab document (PDF or image) to get an instant, clear explanation for every biomarker at once.
Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.