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Order of Draw

Order of Draw, Additives, Uses, Inversions - from NHA CCMA 3.0

Vacuum Tube ColorAdditiveLab UseNumber of Inversions
Yellow or blood culture bottles Sodium polyanethol sulfonate; anticoagulant and stabilizes bacterial growth Blood or body fluid cultures 0
Light blue Sodium citrate; removes calcium as an anticoagulant Coagulation testing 3-4
Red None Serum test; chemistry studies; blood bank; immunology 5
Red/gray marbled None but does have silica particles to enhance clot formation; for serum separation Serum test; chemistry studies; immunology 5
Green Heparin; anticoagulant by inhibiting thrombin formation Chemistry test 8
Green/gray marbled Lithium heparin and gel; for plasma separation Plasma determinations in chemistry studies 8
Lavender Ethylenediaminetetraacetic acid (EDTA); removes calcium as an anticoagulant Hematology test 8
Gray Potassium oxalate and sodium fluoride; removes calcium as an anticoagulant and fluoride prohibits glycolysis Chemistry testing, especially glucose and alcohol levels 8-10
Created by: albinomaPAche
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