von Willebrand factor

von Willebrand factor is a topic covered in the Guide to Diagnostic Tests.

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Test/Range/Collection

von Willebrand factor (vWF), plasma

Blue

Antigen (vWFAg by enzyme-linked immunosorbent assay [ELISA])

Activity (ristocetin cofactor)

50–180%

$$$

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Test/Range/Collection

von Willebrand factor (vWF), plasma

Blue

Antigen (vWFAg by enzyme-linked immunosorbent assay [ELISA])

Activity (ristocetin cofactor)

50–180%

$$$

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