Patient Prep: Collect specimen between 8 a.m. and 12 p.m.
Collect: Lt. blue (sodium citrate). Refer to Specimen Handling at aruplab.com for hemostasis/thrombosis specimen handling guidelines.
Specimen Preparation: Centrifuge plasma. Within 1 hour of draw, transfer 1.5 mL platelet-poor plasma to an ARUP Standard Transport Tube and freeze. (Min: 1 mL)
Storage/Transport Temperature:CRITICAL FROZEN. Additional specimens must be submitted when multiple tests are ordered.
Remarks:
Unacceptable Conditions: Serum. Hemolyzed specimens or specimens that have been thawed and refrozen.
Stability (collection to initiation of testing): Ambient: 1 hour; Refrigerated: Unacceptable; Frozen: 2 months
