- Plain Red Top Tube, Lavender Top Tube, Green Top Tube, Transfer Tube- Serum, Transfer Tube- Plasma
- 2 mL SERUM from Red Top or EDTA or Heparinized PLASMA, separated from cells within 2 hrs of collection. Separated serum or plasma stable only 3 days
- Red-top tube, lavender-top (EDTA) tube, or green-top (heparin) tube. Serum/plasma should be separated from cells within 2 hours of venipuncture. Send serum/plasma in plastic transport tube.