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Medlab- Hematology
Tube Top Colors
Question | Answer | Question | Question |
---|---|---|---|
Which color is this top? Mode of Action: Serum separator tube (SST) contains a gel at the bottom to separate blood from serum on centrifugation. | Gold Top | Additive: None | Uses: Chemistries, Immunology, and Serology |
Which color is this top? Mode of Action: Forms calcium salts to remove calcium | Light Blue Top | Additive: Sodium Citrate | Uses: Coagulation Tests (Protime and Prothrombin Time), full draw required. |
Which color is this top? Mode of Action: Tube is designed to contain no contaminating metals. | Dark Blue Top | Additive: EDTA- | Uses: Trace element testing (zinc, copper, lead, mercury) and toxicology. |
Which color is this top? Mode of Action: Antiglycolytic agent preserves glucose up to 5 days. | Light Gray Top | Additive: Sodium Fluoride and potassium oxalate | Uses: Glucoses, requires full draw (may cause hemolysis if short draw) |
What color is this top? Mode of Action: Forms calcium salts to remove calcium. | Black Top | Additive: Sodium Citrate (buffered) | Uses: Westergren Sedimentation Rate; requires full draw. |
Which color is this top? Mode of Action: Complement inactivation. | Yellow Top | Additive: ACD (acid-citrate-dextrose) | Uses: HLA Tissue typing, Paternity Testing, and DNA studies |
Which color is this top? Mode of Action: Inactivates Thrombin and thromboplastin; contains virtually no lead. | Brown Top | Additive: Sodium Heparin | Uses: Serum lead determination |
Which color is this top? Mode of Action: Blood clots, and the serum is separated by centrifugation. | Red Top | Additive: None | Uses: Chemistries, Immunology and Serology, and Blood Bank (crossmatch) |
Which Color is this top? Mode of Action: Preserves viability of microorganisms. | Yellow- Black Top | Additive: Broth Mixture | Uses: Microbiology- aerobes, anaerobes, fungi |
Which color is this top? Mode of Action: Forms calcium salts/ | Pink Top | Additive: Potassium EDTA | Uses: Molecular/viral load testing. |
Which color is this top? Action: Quickly clots blood. | Orange Top | Additive: Thrombin Mode of | Uses: STAT serum chemistries |
Which color is this top? Mode of Action: Inactivates thrombin and thromboplastin. | Green Top | Additive: Sodium Heparin or Lithium Heparin | Uses: For Lithium Level, use sodium heparin. For Ammonia Level, use sodium or lithium heparin. |
Which color is this top? Mode of Action: Anticoagulates with Lithium Heparin; Plasma is separated with PST gel at the bottom of the tube. | Light Green Top | Additive: Plasma Separating Tube (PST) with Lithium heparin | Uses: Chemistries |
Which color is this top? Mode of Action: Forms calcium salts to remove calcium. | Purple Top | Additive: EDTA | Uses: Hematology (CBC) and Blood Bank (Crossmatch); requires full draw- invert 8 times to prevent clotting and platelet clumping. |