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Factor IX, Activity

Mnemonic:    [FactIX Act]
Name:    Factor IX, 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. FREEZE
Minimum Spec:    1 mL
Transport Temp:    FREEZE
Ref Lab/Code:    ARUP 0030100
  Method:    Clotting
Note:    Hemophiliacs: Please note dose, date & time of last dose of Factor VIII. Hemolyzed specimens are not acceptable.
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.