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Activated Protein C Resistance
MessagePlatelet-poor plasma: Centrifuge light blue-top tube 15 minutes at approx. 1500 x g within 60 minutes of collection. Using a plastic pipette, remove plasma, taking care to avoid the WBC/platelet buffy layer and place into a plastic vial. Centrifuge a second time and transfer platelet-poor plasma into a new plastic vial. Plasma must be free of platelets (< 10,000/mcL). Freeze immediately and ship on dry ice.
Test Code
LAB2917 ACTPR
Alias/See Also
ACTPR
CPT Codes
85307
Includes
@BKRCERMSGREFRESH(2302793)@ @BKRCERMSGREFRESH(2302794)@
Instructions
Minimum Testing Volume: 1 mL Transport Temperature: Frozen Stability: Ambient: N/A Refrigerated : N/A Frozen: 60 Days Causes for Rejection: Received room temperature; Received Refrigerated ; Clotted specimen; Serum; Gross hemolysis
Report Available
3-Days
Clinical Significance
1230170999
Last Updated: May 18, 2026