How is the light lavender tube primarily used in phlebotomy?

The light lavender tube is primarily used in phlebotomy for hematology tests. This tube typically contains the anticoagulant EDTA, which is effective in preventing the blood from clotting. As a result, it is particularly suitable for tests that require whole blood or plasma, such as complete blood counts (CBC) and blood smear analyses. Utilizing the light lavender tube ensures that cellular components of the blood remain intact for accurate examination under a microscope and for the reliable generation of hematological parameters.

Other tests, such as coagulation tests, would utilize different tubes with specific additives, while blood gas analysis usually requires a heparinized tube, and serological tests may involve tubes containing different preservatives or additives to facilitate serum separation.