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Tube Tops
MedLab tube tops
| Top color | ADDITIVE | Uses |
|---|---|---|
| Light Blue | sodium citrate | Coagulation tests ( protime and prothrobin time),full draw required |
| Purple Top | EDTA | Hematology (CBC) and Blood Bank (crossmatch); requires full draw- invert 8 times to prevent clotting and platelet clumping |
| Red Top | None | Chemistries, Immunology and Serology,Blood Bank ( Crossmatch) |
| Yellow-Black | Broth mixture | Microbiology- aerobes, anaerobes,fungi |
| Gold | None | Chemistries, Immunology and Serology |
| Black | Sodium citrate ( buffered) | Westergren Sedimentation Rate; requires full draw |
| Light Brown | Sodium heparin | Serum lead determination |
| Light Green | Plasna Separating Tube (PST) with Litium heparin | Chemistries |
| Orange | Thrombin | STAT serum chemistries |
| Light Gray | Sodium fluoride and potassium oxalate | Glucoses, requires full draw (may cause hemolysis if short draw) |
| Yellow | ACD (acid-citrate-dextrose) | HLA tissue typing, paternity testing,DNA studies |
| Dark Blue | EDTA | Trace element testing (zinc, copper,lead,mercury) and toxicology |
| Pink | Potassium EDTA | Molecular/Viral load testing |
| Green | sodium heparin or lithium heparin | For lithium use sodium heparin. For ammonia level,use sodium or lithium heparin, HPV |