Red tube additive is:
Red tube used for:
Chemistries, immunology , serology & blood bank cross match
Light Blue tube additive is:
Sodium citrate (Na citrate)
Light Blue tube used for:
Coagulation tests (PT, PTT, TCT, CMV) tube must be filled 100%
Light Green tube additive is:
Plasma separating tube (Na heparin)
Light Green tube used for:
Orange tube additive is:
Orange tube used for:
STAT serum chemistries
Dark Green tube additive is:
Sodium heparin or lithium heparin
Dark Green tube used for:
Ammonia, lactate, HLA typing For lithium level, use sodium heparin. For ammonia level, use sodium or lithium heparin
Gray tube additive is:
Sodium fluoride and potassium oxalate
Gray tube used for:
For lithium level, use sodium heparin. Glucoses requires a full draw (may cause hemolysis if short dray)
Red/gray "tiger" tube additive is:
Serum Separating Tube (SST) with clot activator
Red/gray "tiger" tube used for:
Blood type screening and chemistries
Gold tube additive is:
Separating gel and clot activator
Gold tube used for:
Serology, endocrine, immunology, including HIV
Royal or Dark Blue tube additive is:
Sodium heparin or Na2 EDTA
Royal or Dark Blue tube used for:
Toxicology and trace element testing (zinc, copper, lead, mercury) and drug level testing.
Yellow tube additive is:
Yellow tube used for:
Paternity testing, DNA studies
Purple or Lavender tube additive is:
EDTA (liquid form)
Purple or Lavender tube used for:
Hematology (CBC) and Blood bank (crossmatch); requires a full draw- invert 8 times to prevent clotting and platelet clumping.
Brown tube additive is:
Brown tube used for:
Serum lead determination
Black tube additive is:
Sodium citrate (buffered)
Black tube used for:
Westergren sedimentation rate; requires a full draw.
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