|Description:||Here we see a test tube tray containing a number of purple-tipped vacutainer tubes in the foreground, and in the background were a number of green-tipped vacutainers.|
Purple-topped vacutainer blood collection tubes contain the anticoagulant EDTA, which prevents the collected blood from clotting. The contents of purple-topped tubes is generally used when running blood analysis tests including blood counts, hemoglobin, platelet count, etc.
The green-topped tubes contain the anticoagulant heparin, causing the collected blood to separate yielding a blood/plasma sample, therefore, these tubes are also known as “plasma separator tubes”. Tests run on the green-topped tubes are generally chemistry tests carried out upon the plasma component of the blood including the evaluation of endocrine and metabolic disorders, toxicology tests, and lipid panels, to name a few.
Exposures to blood and other body fluids occur across a wide variety of occupations. Health care workers, emergency response and public safety personnel, and other workers can be exposed to blood through needlestick and other sharps injuries, mucous membrane, and skin exposures. The pathogens of primary concern are the human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV). Workers and employers are urged to take advantage of available engineering controls and work practices, to prevent exposure to blood and other body fluids.