0.8 ml blood
Light Green (Lithium Heparin PST)
Green top preferred (Red top acceptable)
0.3 ml (NA Hep) plasma
0.1 ml (NA Hep) plasma
Centrifuge & separate plasma from the cells. Specimens should be used within 48 hours of collection or stored in the refrigerator for up to 7 days. Bring plasma to Chemistry Dept. for testing.