Gold serum separator (SST) tube
Immediately following collection, thoroughly mix sample by gently inverting 5 times
Red serum vial/tube - 5 mL
Red/grey serum separator (SST) vial/tube, 10 mL
False bottom plasma/serum transport vial/tube (AHL)
Refrigerated (preferred) - 7 days
Frozen (OK)
Turbidimetric
Adult: 81 - 157 mg/dL