Porcine FVIII Nijmegen Bethesda assay-994

Test info

  
Porcine FVIII Nijmegen Bethesda assay
  
994
  
LAB994
  
MSO
  

To quantitate the titer of FVIII-specific inhibitors to porcine FVIII concentrate

Specimen

  
Sodium citrate (Na cit) plasma
  
  
1.5 mL
  
0.75 mL
Note: this volume does not allow for repeat testing
  
  • Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate.
  • Evacuated collection tubes must be filled to completion to ensure a proper blood-to-anticoagulant ratio.
  • Immediately following collection, mix sample thoroughly by gentle inverting 8 - 10 times, to prevent clotting
  
  1. Spin
  2. Transfer plasma to a Screw-cap polypropylene frozen transport vial/tube - 4mL (LabCorp), labelled as Na cit plasma
  3. Freeze
  

Frozen (strict)

  
  • Thawed sample
  • Wrong sample type

Performance

  
Esoterix Coagulation Lab (301608) via LabCorp (504474): R-NX
  
Weekly (varies)
  
5 days
  

One-stage clotting, Nijmegen-modified Bethesda assay

Clinical and Interpretive info

  

< 0.6 BU/mL

Billing

  
85335
  
Result 3204-5

Tracking

  
05/24/2019
  
12/29/2019
  
05/19/2020