Phlebotomy: Collection Tubes & Tests
Terms
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- The red top tube is used for:
- Chemistries, immunology and serology, blood bank (crossmatch)
- The gold top tube is used for:
- Chemistries, immunology and serology
- The light green top tube is used for:
- Chemistries
- The red-gray top tube is used for:
- Chemistries
- The purple top tube is used for:
- Hematology (CBC) and blood bank (crossmatch); requires FULL DRAW - invert 8 times to prevent clotting and platelet clumping
- The light blue top tube is used for:
- Coagulation tests (protime and prothrombin time), FULL DRAW required
- The dark green top tube is used for:
- Lithium levels (use sodium heparin); ammonia levels (use sodium or lithium heparin)
- The dark blue top tube is used for:
- Trace element testing (zinc, copper, lead, mercury) and toxicology
- The light gray top tube is used for:
- Lithium levels (use sodium heparin); glucoses, requires FULL DRAW (may cause hemolysis if short draw)
- The yellow top tube is used for:
- HLA tissue typeing, paternity testing, DNA studies
- The yellow-black top tube is used for:
- Microbiology - aerobes, anaerobes, fungi
- The black top tube is used for:
- Westergren sedimentation rate; requires FULL DRAW
- The orange top tube is used for:
- STAT serum chemistries
- The brown top tube is used for:
- Serum lead determination