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Lavender hematology - EDTA whole blood/plasma
Pink blood banking - EDTA whole blood/plasma
Light Blue coagulation - Sodium Citrate - centrifuged plasma
Green chemistry - heparin with sodium, lithium, or ammonium ion - whole blood/plasma
Light Green chemistry -plasma separator tube (PST)- well suited for potassium - plasma
Red (plastic) chemistry or serology - clot activator - serum
Red (glass) blood banking, chemistry, or serology - No additive or anticoagulant - serum
Red/Grey (tiger top), Gold chemistry - clot activator and gel - serum
Yellow/Grey, Orange chemistry - thrombin - serum
Gray chemistry glucose tests - potassium oxalate/sodium fluoride
Royal or Dark Blue chemistry trace elements, toxicology, and nutrient analyses -
Yellow microbiology blood cultures - whole blood - sodium polyanetholesulfonate (SPS)
Tan chemistry lead test - plasma - sodium heparin or edta
White molecular diagnostics - plasma - edta and gel
Black hematology sedimentation rates - whole blood - sodium citrate
order of draw 1 yellow tubes and culture bottles
order of draw 2 light blue
order of draw 3 glass red (non additive)
order of draw 4 plastic red (clot activator), yellow/gray or orange (thrombin clot activator)
order of draw 5 red/gray (tigertop) or gold (serum separator)
order of draw 6 green (heparin)
order of draw 7 light green (plasma separator)
order of draw 8 lavender (EDTA)
order of draw 9 gray (oxalate/fluoride)