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Microbiology Sources | Microbiology Tests | Anatomic Pathology | Cytopathology

Factor VIII and VWF Antigen by ELISA

Source Blood
Mnemonic Note: test is only performed if "ELISA" or "Molecular Study" is specifically stated on requisition.  For all other requests for Factor VIII and/or VWF, order Hemostasis Study.

F8ELR
Specimen Requirements 1-2 x 4.5 mL blue top sodium citrate tube
Specimen Handling

PSC & RRL:
Send specimens UNSPUN at room temperature to DSC Molecular Hematology within 4 hours of collection.

Extra-regional:
Centrifuge blue top tubes at 4ºC + 2ºC, at 3500 rpm for 20 minutes, and aliquot plasma into 4 plastic tubes. Freeze and transport frozen to DSC Molecular Hematology.

DSC Accession:
After 16:30, centrifuge at 4ºC + 2ºC, at 3500 rpm for 20 minutes, aliquot plasma into 4 plastic tubes, and freeze aliquots at -70ºC.  Do not discard original tube with cells; store at 4ºC.

Additional Information

Call Molecular Hematology at 403-770-3699 to book testing. Test can only be ordered by Hematologist.

Specimens must be accompanied by a copy of the original requisition, complete with patient history.

Testing includes FVIII:Ag and VWF:Ag

Testing Location Molecular Hematology
Testing Frequency
Alternate Name(s)
Reference Interval