Collect: Lavender (EDTA) or pink (K2EDTA) plus aprotinin (ARUP supply #16570). Available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. Collect in chilled container.
Specimen Preparation: Add 0.04 cc of aprotinin per mL of whole blood immediately after collection. Example: 3 mL EDTA tube would require 0.12 cc of aprotinin (3 x 0.04 cc = 0.12 cc aprotinin). Centrifuge and separate plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL plasma (EDTA plus aprotinin) to an ARUP Standard Transport Tube and freeze. (Min: 0.5 mL)
Storage/Transport Temperature:CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
Unacceptable Conditions: Specimens transported in glass tubes.
Stability (collection to initiation of testing): After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 3 months