| Methodology: |
Cold Precipitation
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| Performed: |
Sun-Sat
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| Reported: |
3-5 days
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| Specimen Required: |
Collect: Whole blood must be drawn in a pre-warmed (37°C) syringe and kept at 37°C. Immediately after blood has been obtained, transfer specimen to a pre-warmed (37°C) plain red and keep specimen at 37°C until clotting is complete. Specimen may be drawn directly into a pre-warmed collection tube and maintained at 37°C until centrifugation. Let clot for one hour at 37°C. Separate serum from cells using a 37°C centrifuge, if possible.
Transport: 3 mL serum at 20-25°C. (Min: 3 mL) Submit specimen in an ARUP Standard Transport Tube.
Pediatric Collection/Transport: 1 mL serum at 20-25°C.
Remarks: Fasting specimen recommended. Do not refrigerate or freeze at any time. Proper collection and transport of specimen is critical to the outcome of the assay. Quantities less than 3 mL may affect the sensitivity of the assay.
Unacceptable Conditions: Refrigerated or frozen specimens. Separator tubes. Lipemic or grossly hemolyzed specimens.
Stability: After separation from cells: Ambient: 1 week; Refrigerated: Unacceptable; Frozen: Unacceptable
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