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Med Lab ( tubes)
color blood tubes with additive
| Color | Additive | Uses |
|---|---|---|
| RED TOP | None | Chemistries, immunology and Serology, Blood Bank (crossmatch) |
| PURPLE TOP | EDTA | Hematology (CBC) and Blood Bank (Crossmatch); requires FULL DRAW- invert 8 times |
| LIGHT BLUE TOP | Sodium citrate | Coagulation tests (protime and prothrombin time), FULL DRAW required |
| Light GRAY TOP | Sodium fluoride and potassium oxalate | Glucoses, requires FULL DRAW (may cause hemolysis if short draw) |
| Light GREEN TOP | Plasma Separating Tube (PST) with Lithium heparin | Chemistries |
| DARK BLUE TOP | EDTA | Trace element testing (Zinc, copper,lead,mercury) and toxicology |
| YELLOW TOP | ACD (acid-citrate-dextrose) | HLA tissue typing, paternity testing, DNA studies |
| GOLD TOP | None | Chemistries, immunology, and Serology |
| PINK TOP | Potassium EDTA | Molecular and viral load testing |
| ORANGE TOP | Thrombin | STAT serum chemistries |
| LIGHT BROWN TOP | Sodium Heparin | Serum Lead Determination |
| BLACK TOP | Sodium citrate (buffered) | Westergren Sedimentation Rate; requires FULL DRAW |
| YELLOW BLACK TOP | Broth mixture | Microbiology- aerobes, anaerobes, fungi |
| GREEN TOP | Sodium heparin or lithium heparin | For lithium level, use sodium heparin for ammonia level, use sodium or lithium heparin, HPV. |