von Willebrand Factor (vWF) Screen

Test Code

VWP

Specimen Name

von Willebrand Factor (vWF) Screen

CPT Codes

  • 85240
  • 85244
  • 85245

Collect

Sodium Citrate Plasma

Stability

CRITICAL FROZEN

Volume

4 - 0.5 mL aliquots

Minimum Volume

2 - 0.5 mL aliquots

Performed

Performed Monday through Friday - Reported 1-4 days

Components

Additional Information

The presence of Rheumatoid Factor over 50 IU/mL may produce an overestimation of VW antigen results.

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Test Information

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Common Test Phrases

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT