VW Multimer Panel




Test Mnemonic

VWMULP

CPT Codes

  • 85247 - QTY (1)
  • 85245 - QTY (1)
  • 85240 - QTY (1)
  • 85246 - QTY (1)

Aliases

  • Multimer Panel

Includes

  • Multimer Analysis,
  • von Willebrand Factor Antigen,
  • Ristocetin Cofactor,
  • and Factor VIII Assay

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
3 mLPlatelet-poor plasmaSodium citrate (Lt. Blue) Frozen 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
3 mL     

Days Performed

Refer to individual components

Turnaround Time

3 - 8 days

Methodology

Name Description
Agglutination 
Clotting Assay 
Electrophoresis 
Latex Immunoassay (LIA) 

Reference Range

Factor VIII Assay
Sex Age From Age To Type Range Range Unit
   Days1 DaysNormal22 - 207%
 2 Days5 DaysNormal22 - 179%
 6 Days30 DaysNormal26 - 182%
 1 Months3 MonthsNormal34 - 145%
 4 Months11 MonthsNormal38 - 127%
 1 Years5 YearsNormal59 - 165%
 6 Years10 YearsNormal58 - 153%
 11 Years16 YearsNormal53 - 152%
 17 Years99 YearsNormal50 - 173%
   Years99 YearsUrgentAfter Pathologist Review: < 5%
Ristocetin Co-Factor
Sex Age From Age To Type Range Range Unit
   Years99 YearsNormal42-146%
Von Willebrand Factor Antigen
Sex Age From Age To Type Range Range Unit
   Days1 DaysNormal37 - 314%
 2 Days5 DaysNormal50 - 278%
 6 Days30 DaysNormal19 - 269%
 1 Months3 MonthsNormal58 - 226%
 4 Months11 MonthsNormal33 - 216%
 1 Years5 YearsNormal60 - 131%
 6 Years10 YearsNormal44 - 158%
 11 Years16 YearsNormal46 - 168%
 17 Years99 YearsNormal50 - 173%

Clinical Info

Please refer to the PLMI laboratory directory for individual test clinical information.