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Tube colorUsesAdditive
Purple Hematology(CBC) and blood bank(cross match; requires full draw invert 8 times to prevent clotting and platelet clumping EDTA
Light Blue Coagulation test(protime and prothrombin time), full draw required Sodium citrate
Green For lithium level, use sodium heparin for ammonina level, use sodium or lithium heparin, HPV Sodium heparin or lithium heparin
Black westergren sedimintation rate; requires full draw Sodium citrate (buffered)
Yellow-black Microbiology- aerobes, anaerobes, fungi Broth mixture
Dark Blue Trace element testing (zinc, copper, lead, mercury) and toxicology EDTA
Pink Molecular/ Viral load Testing Potassium EDTA
Orange STAT serum chemistries Thrombin
Yellow HLA tissue typing, paternity testing, DNA studies ACD (acid-citrate-dextrose)
Gold Chemistries, immunology, and serology None
Light brown Serum lead determination Sodium heparin
Light green Chemistries Plasma Separating Tube (PST) with Lithium Heparin
Light Gray Glucoses, requires full draw (may cause hemolysis if short draw) Sodium fluoride and potassium oxalate
Red Chemistries, immunology and serology, blood bank(crossmatch) None
Created by: Socceres11