Collection Notes: Patient should fast overnight. Hemolyzed or lipemic specimens are not acceptable.
Clinical Utility: A rise of the serum concentrations occurs as a result of a higher release of ?2-microglobulin due to increased activity of the immune system as in infections or rheumatic diseases, cell death, or diminished elimination due to renal damage.
Serum (1 mL)
Ambient 5 Days
Refrigerated 7 Days
Frozen 30 Days
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