Do you centrifuge EDTA tubes?
Plasma preparation
Collect whole blood into commercially available anticoagulant-treated tubes e.g., EDTA-treated (lavender tops) or citrate-treated (light blue tops). ... Cells are removed from plasma by centrifugation for 10 minutes at 1,000–2,000 x g using a refrigerated centrifuge.
Do you spin down lavender tubes?
Lavender-Top (EDTA) Tube : This tube contains EDTA as an anticoagulant—used for most hematological procedures and Blood Bank testing. Note: After tube has been filled with blood, immediately invert tube several times in order to prevent coagulation.