Specimen Stability Information

Serum or plasma specimens should be stored for no longer than 3 days at room temperature or 7 days at 2 to 8°C following specimen collection. If a storage period greater than 7 days is anticipated, the specimens should be removed from the clot, red blood cells, or separator gel, and the serum or plasma should be stored frozen at –20°C or colder. No more than 5 freeze-thaw cycles should be performed on any sample prior to testing.