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APCR no longer available ; request alternative test Factor V Leiden.
May identify venous thrombotic risk.
Can be performed on patients taking warfarin and/or heparin.
Screening test for Factor V Leiden but not specific for Factor V Leiden.
See also - Factor V Leiden
Tube filled to label marker and mixed by inversion.
Do not use 1 mL citrate tubes.
Ratio: 2.3-8.0
Centrifuge the two 3.5 mL citrate tubes and transfer the plasma to a labeled 4 mL plastic tube and re-centrifuge at room temperature (do not use the refrigerated centrifuge).
The double centrifuged plasma is transferred to two 1 mL eppendorf tubes and freeze.
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