Gold serum separator (SST) tube
Immediatley following collection, mix sample by gently inverting 5 times
Screw cap transfer vial/tube (Mayo T914)
Red serum vial/tube - 5 mL
Refrigerated (preferred) - 30 days
Frozen (OK) - 30 days
Ambient - NO
Enzyme-Linked Immunosorbent Assay (ELISA)