Collection Notes: Grossly hemolyzed and grossly lipemic specimens are not acceptable. Plasma is not acceptable.
Clinical Utility: PEP is useful in the evaluation of collagen diseases, inflammatory states, macroglobulinemia of Waldenstrom, monoclonal gammopathies and myeloma.
Serum (2 mL)
Ambient 5 Days
Refrigerated 7 Days
Frozen 24 Days
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