Final answer:
The Lavender or Light/Dark Purple Top Tube is utilized primarily for hematological tests, including blood cell counts, hemoglobin concentration, hematocrit determinations, and cell characterizations. It contains an anticoagulant to preserve blood cells' shapes for accurate measurements.
Step-by-step explanation:
The Lavender or Light/Dark Purple Top Tube is commonly used for blood cell count tests. The tube contains EDTA, an anticoagulant that prevents blood clotting, hence preserving the shape of the blood cells for accurate measurement. Therefore, these tubes are primarily used for hematological tests, such as blood cell counts, hemoglobin concentration, hematocrit determinations, and cell characterizations.
However, the Lavender or Light/Dark Purple Top Tube is not typically used for blood chemistry tests or blood coagulation tests as these necessitate serum, which can't be obtained from blood in these tubes due to the presence of EDTA. The light/dark purple top tube is also not used for blood culture since it does not have the appropriate media to promote the growth of potential pathogenic microorganisms.
Learn more about Purple Top Tube