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MoreraMedlab
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| Tube color | Uses | Additive |
|---|---|---|
| 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 |