evaluation of vWF protein - vWF:Ag, vWF:R - reduced in type I, normal/reduced in type II, greatly reduced in type III
ristocetin cofactor activity - ristocetin fails to induce platelet aggregation in von Willebrand's patients because of lack of vWF:R - a cofactor for ristocetin
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page