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Color of TOP
MEDLAB Tube tops
| Top Color | ADDITIVE | USES |
|---|---|---|
| Light Blue | sodium citrate | Coagulation tests (protime and prothrombin tests) |
| Purple | EDTA | Hematology (CBC) and Blood Bank (Crossmatch); to prevent clotting and platelet clumping |
| Red | NONE | Chemistries, Immunology and serology, Blood Bank (Crossmatch) |
| Yellow-Black | Broth mixture | Microbiology- aerobes, anaerobes, and fungi |
| Black | Sodium citrate (buffered) | Westergren Sedimentation Rate |
| Gold | None | Chemistries, Immunology and Serology |
| Light Brown | Sodium heparin | Serum lead determination |
| Light Green | Plasma Separating Tube (PST) with Lithium heparin | Chemistries |
| Orange | Thrombine | STAT serum chemistries |
| Light Gray | Sodium fluoride and patassium oxalate | Glucoses (may cause hemolysis if short draw) |
| Yellow | ACD (acid-citrate-dextrose) | HLA tissue typing, paternity testing, and DNA studies |
| Dark Blue | EDTA | Trace element testing (cooper, zinc, lead, and mercury) and toxicology |
| Pink | Potassium EDTA | Molecular/viral load testing |
| Green | ADDITIVE: sodium heparin or lithium heparin | For lithium level, use sodium heparin. For ammonia level, use sodium or lithium heparin. |