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Order of Draw

Order of Draw Department-Yields-Inversions

TermDefinition
Yellow (STERILE) do not confuse with NONSTERILE Tests blood culture Additives sodium polyanethol sulfonate (SPS); inhibits phagocytosis (digestion of microorganisms) Specimen whole blood Invert 8
Yellow (NONSTERILE) do not confuse with STERILE Tests human leukocyte antigen (HLA); used for paternity test and tissue tying Additives acid citrate dextrose Specimen whole blood Invert none
Light Blue Top Tests coagulation testing Additives sodium citrate Specimen plasma Invert 3-4 times **Must fill tube completely to maintain ratio of nine parts blood to one part sodium citrate**
Red Top (PLASTIC) PLASTIC TUBE Tests chemistry, serology Additives clot activators Specimen serum
Red Top (GLASS) GLASS TUBE Tests chemistry, serology , blood Additives none Specimen serum
Gold/Tiger/Marble Top Tests mostly blood chemistry Additives clot activators, thixotropic gel Specimen serum Invert 5 times **a.k.a. serum separator tubes (SSTs)**
Light Green Top Tests STAT potassium Additives lithium heparin, thixotropic gel Specimen plasma Invert 8 times **a.k.a. plasma separator tubes (PSTs)**
Dark Green Top Tests STAT blood chemistry, ammonia, electrolytes, arterial blood gases (ABG0 Additives sodium heparin, may have gel Specimen plasma Invert 8 times
Pink Top Tests hematology, blood bank Additives EDTA Specimen whole blood, plasma Invert 8 times **similar to lavender tube, but its closure and label MUST MEET THE STANDARDS SET by American Association o
Lavender Top Tests complete blood count (CBC) Additives EDTA Specimen whole blood Invert 8 times **most common blood test, LAVENDER TOPS ARE MOST FREQUETNLY USED**
Gray Top Tests lactariid acid measure, glucose tolerance test (GTT),fasting blood sugar (FBS), blood alcohol level Additives iodoacetate, sodium fluoride, anticoagulant
Dark Blue Red/Purple Tests toxicology, trace metals, nutritional analysis Additives EDTA or none Specimen Red stripe Serum Specimen Lavender stripe Plasma Invert with heparin and EDTA 8-10 times
NOT USUAL Tan Top Tests lead analysis Additives EDTA Specimen plasma Invert 8 times
NOT USUAL Orange or Yellow/Gray Top Tests STAT blood chemistry Additives thrombin Specimen serum Invert 8 times **Allow five minutes of clotting time for patients on anticoagulant therapy.
Created by: Kirsten Ayde
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