One 4 mL lavender top tube (EDTA) AND one 7.5 mL serum separator tube (SST).
Handling:
Allow SST to clot and centrifuge within one hour of collection. Separate serum into a plastic vial. Refrigerate. Transport specimens within 12 hours of collection.
Stability:
Specimen may be tested up to 24 hours after collection. Studies show that a small number (<5%) of abnormal ESRs tested 16 hours or more after collection will correct to within the normal range.
Standard Volume:
3 mL EDTA whole blood and 2 mL serum.
Minimum Volume:
1.5 mL EDTA whole blood and 1 mL serum.
Transport:
Refrigerated.
Rejection Criteria:
Specimen age; frozen specimens; gross hemolysis or gross lipemia.
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