Vacutainer tubesOnline version Color +anticoagulant + department by Dawn Forgione 1 1 2 2 3 3 4 4 5 5 6 6 7 7 Light Blue Sodium Citrate Coagulation testing SST Gold/Yellow or Tiger Serum Separator Tube Routine Chemistry testing Gel barrier Serum tube Redtop Clot 60 pre-centrifuge Drug testing PST Plasma Seperator tube Light green Lithium heparin anticoagulant Heparin Green Sodium heparin Routine chemistry EDTA Purple or pink K2 EDTA Routine hematology and immunohematology Gray Sodium Fluoride Potassium oxalate