Admin What tubes do you use for blood tests?
Blood Collection Tubes
| Tube cap color | Additive | Common laboratory tests |
|---|---|---|
| Lavender or pink | Potassium EDTA | Hematology and blood bank |
| Gray | Sodium fluoride, and sodium or potassium oxalate | Glucose (especially when testing will be delayed), blood alcohol, lactic acid |
What is the order of blood bottles?
The correct order of draw follows:
- Blood culture tube or bottle.
- Sodium citrate tube (eg, blue closure)
- Serum tubes, including those with clot activator and gels (eg, red, red-speckled, gold closures)
- Heparin tube with or without gel (eg, dark green, light green, speckled green closures)
What do the colors of blood test tubes mean?
Each color relates to unique additives that are in the tube. Red: Contain NO anticoagulants, used for serum testing. Gold: Contains a clot activator and special gel to separate serum from the cells. Purple: Contains a clot blocker and are used for complete blood count(CBC). Green & Light Blue: Used for plasma testing.
What is a purple blood test for?
The purple top tube provides blood for infectious disease tests and ascertaining important data such as ABO/Rh (blood type), as well as whether the blood is positive or negative for cytomegalovirus (CMV), HIV, hepatitis, and West Nile virus, to name a few.
What is the yellow top blood test for?
The yellow blood bottle can be used to test for a wide variety of bacterial, viral, fungal and parasitic infections including HIV and viral hepatitis.
What is a yellow blood test for?
What is a yellow top blood test for?
What is the green blood vial for?
Light green-top tube (lithium heparin) This tube contains lithium heparin and gel separator used for the collection of heparinized plasma for routine chemistry tests. NOTE: After the tube has been filled with blood, immediately invert the tube 8-10 times to mix and ensure adequate anticoagulation of the specimen.