Blood Test: von Willebrand Factor (vWF) Antigen for Parents
Doctors order the vWF antigen test to help diagnose or monitor the treatment of von Willebrand disease.
A von Willebrand factor (vWF) activity - ristocetin cofactor test lets doctors evaluate the functioning of a protein that helps blood to clot.
Medical Tests & Exams - Nemours KidsHealth for Parents
Does your child need a diagnostic test? Find out what to expect.
Blood Test: Factor VIII Activity for Parents
A factor VIII activity blood test enables doctors to evaluate the functioning of a protein that helps blood to clot.
Von Willebrand Disease for Parents
Easy bruising and excessive bleeding can be signs of Von Willebrand disease, a genetic disorder that affects blood's ability to clot.
Doctors & Hospitals - Nemours KidsHealth for Parents
Doctor and hospital visits, tests, surgery, insurance paperwork, and medicines: let us help you take some confusion out of the process.
von Willebrand Disease for Teens
When people have Von Willebrand disease, their blood doesn't clot properly. Many teens with VWD have such mild symptoms that they never know they have it.