Factor VIII Antigen

Specimen Tube Type Transport

Sodium Citrate Blue Top

Container Whole Blood Required

1 Full Sodium Citrate Blue Top tube

Critical Value

N/A

Summary Test Name

Factor VIII Antigen

Specimen Preparation Outreach

Refrigerate until courier pickup

Specimen Stability

2 hours if refrigerated and 3 months at - 70^o C.

Minimum Volume

4.1 ml whole blood in a 4.5 ml Sodium Citrate Blue Top or 2.4 ml whole blood in a 2.7 ml Sodium Citrate Blue Top or 1.6 ml whole blood in a 1.8 ml Sodium Citrate Blue Top

Specimen Transport

Refrigerate

Specimen Preparation In House

Spin at 2500 g for 20 minutes. Remove plasma and split into two aliquots. freeze at - 70^o C. until analysis

Stat Availability

Not available

Test Turnaround Time Routines And Stats

10 Working days

Patient Preparation

No heparin for 48 hours or coumadin for 2 weeks prior to testing.

Reference Value

50-200%

Additional Test Information

Requires Heme/Oncology Consult