One 7.5 mL serum separator tube (SST). also acceptable: One 5 mL red top tube.
Handling:
Allow to clot, centrifuge and immediately separate serum into a plastic vial. Refrigerate. Freeze at -20° C if specimen cannot be assayed within 7 days. Allow no more than 3 freeze/thaw cycles.
Stability:
8 hours ambient, 7 days refrigerated, or frozen ≤ 20° C for long term storage.
Standard Volume:
1.5 mL serum
Minimum Volume:
1.0 mL serum
Transport:
Refrigerated or frozen on dry ice.
Comments:
Positive ANCA Screen results will reflex to an ANCA Titer and MPO/PR3 Confirmation. Additional charges will apply for reflex testing.
Rejection Criteria:
Plasma; gross lipemia; hemolysis; contaminated or heat inactivation specimen; specimen frozen/thawed more than three times.