Vacutainer tubes

Red-Top or Serum Collection Tube

Lavender-Top tubes

Green-Top or Heparin tubes

Total protein may be slightly higher for plasma because it includes fibrinogen
Potassium averages about 0.5mmol/L higher for serum because of platelet release during clotting

Blue-Top or Citrate Tube

Sure-Sep Tube

Gray-Top or Fluoride Tube

Blood collected for a CBC should be analyzed within __ hour or be prepared in the proper way for analysis at a later time

Blood collected in the red top tube is allowed to clot for _____ minutes and then centrifuged to separate the cellular components from the serum