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Medlab- Hematology

Tube Top Colors

QuestionAnswerQuestionQuestion
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.
Created by: NicholeM