Collection Requirements

1 Preferred Specimen Volume: 2.0 ml Specimen Type EDTA plasma (Lavender Top Tube) Specimen State Refrigerated (cold packs) Preferred: 2 mL (0.6 mL minimum) plasma collected in an EDTA (lavender- top) or PPT (white-top) tube. (NOTE: This volume does not allow for repeat testing) Freshly drawn specimens (whole blood) may be stored at 2° C to 25° C for up to 24 hours prior to centrifugation. Separate plasma from cells within 24 hours of collection by centrifugation. Follow manufacturer's instructions for collection tube handling. CSF: Collect CSF using standard procedures. Transfer to a sterile, leak-proof container. Ship frozen. Reject Criteria: Plasma received frozen in the plasma preparation tube (PPT) serum, whole blood greater than 24 hours old, frozen whole blood.