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Factor VIII, Activity

Mnemonic:    [FactVIII Act]
Name:    Factor VIII, Activity
Specimen:    2 mL plasma from a FULL sodium citrate Blue top tube. Allow tube to fill to proper capacity. Mix immediately by gentle inversion 4 times.
The sample must be centrifuged immediately in a precalibrated, authorized centrifuge. The sample must be doubly spun to insure that it is platelet poor plasma. We recommend that patients be sent to the outpatient phlebotomy lab, so the samples can be processed appropriately.

Hemolyzed specimens are not acceptable. Rifrigerated samples are unacceptable.
Minimum Spec:    1 mL
Transport Temp:    FREEZE
Spec Stability:    Stable 4 hours ambient.
Ref Lab/Code:    ARUP 0030095
  Method:    Clotting
Processing Info:    Give samples to coagulation tech to be spun in the calibrated centrifuge.

Each coagulation test sample must be separately frozen. Send separate specimens when multiple tests are ordered.