- May be common cause of menorrhagia
- Consider in pt with easy bruising, frequent/prolonged epistaxis, bleeding gums, etc.
- Sx may be provoked by aspirin use
- Plasma VW Factor Antigen
- Plasma VW Factor Activity (aka ristocetin cofactor activity)
- Plasma Factor VIII activity
If any of the above are abnormally low, send to Hematology for Dx and Tx.