Vacutainer Tube Purple 2 ml

The Vacutainer tube marked with a purple cap is a 2 ml vacuum blood collection device. The tube contains EDTA (ethylenediaminetetraacetic acid) anticoagulant, which binds calcium ions and thus prevents blood clotting. It is mainly used for hematological examinations, such as complete blood count (CBC) testing. To ensure the proper blood-to-anticoagulant ratio, it is important to fill the tube up to the indicated mark. After blood collection, the tube should be gently inverted several times to ensure proper mixing. The purple cap color code internationally indicates the presence of EDTA. Its use enables accurate and reliable laboratory results.