*
1 mL Serum
Red-top tube (no additive). Alternative: Serum gel separator tube. Can be performed on plasma - use an EDTA (purple-top) or Heparin (green-top) tube.
Clear plastic seru/plasma transfer vial
0.5 mL Serum
Gross hemolysis
Room temperature: 10 days
Refrigerated: 14 days
Frozen: 30 days
37°C/99°F: not tested
Enzymatic
1 - 3 days
Sex | Age | |
Both | 1-19 years | >45 mg/dL |
Female | 20-199 years | >60 mg/dL |
Male | 20-199 years | >50 mg/dL |