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Tube Top ColorAdditiveMode of ActionUses
Red None Blood clots, and the serum is separted by centrifugation chemistries, immunology, serology, and blood bank (crossmatch, blood typing)
Purple EDTA Forms calcium salts to remove calcium Hematology (CBC) and Blood Bank (Crossmatch); (FULL DRAW REQUIRED)
Light Green Plasma Separating Tube (PST) with Lithium heparin Anticoagulates with lithium heparin; Plasma is separated with PST gel at the bottom of the tube Chemistries
Gold None Serum Separator tube (SST) contains a gel at the bottom to separate blood from serum on centrifugation Chemistries, Immunology and Serology
Dark Blue EDTA Tube is designed to contain no contaminating metals Trace element testing(zinc, copper, lead, mercury) and toxicology
Light Gray Sodium flouride and potassium oxalate Antiglycolytic agent preserves glucose up to 5 days Glucoses (FULL DRAW REQUIRED) or hemolysis may occur
Yellow ACD(acid citrate-dextrose) complement inactivation HLA tissue typing, paternity testing, DNA studies
Yellow-Black Broth mixture preserves viability of microorganisms microbiology - aerobes, anerobes, fungi
Black sodium citrate(buffered) forms calcium salts to remove cal Westergren Sedimentation Rate(FULL DRAW REQUIRED)
Orange Thrombin quickly clots blood STAT serum chemistries
Light Brown Sodium heparin Inactivates thrombin and thromboplastin; contains virtually no lead serum lead detection
Pink Potassium EDTA forms calcium salts Immunohematology
White Potassium EDTA Forms calcium salts Molecular/PCR and bDNA testing
Green Sodium heparin or Lithium heparin inactivates thrombin and thromboplastin For litium level, use sodium heparin. For ammonia level, use sodium or lithium heparin. HPV.
Light Blue Sodium citrate Forms calcium salts to remove calcium Coagulation tests - protime and prothrombin time (FULL DRAW REQUIRED)
Created by: twlrachii



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