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2437 pages added, reviewed or updated during the last month (last updated: 22/4/2021)

2437 pages added, reviewed or updated during the last month (last updated: 22/4/2021)


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diagnosis

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Diagnosis is based upon:

  • assays of von Willebrand's Factor:
    • increased template bleeding time
    • 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

Last reviewed 01/2018

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