vacutainerVakuumröhrchen

Vacutainer is a brand name for a system used for collecting blood samples. The system consists of a specialized needle, a holder, and a collection tube. These tubes are evacuated, meaning they contain a vacuum. This vacuum is designed to draw a specific amount of blood into the tube when the needle is inserted into a vein. The tubes are also stoppered with a colored cap that indicates the type and amount of anticoagulant or additive contained within. Different colored caps signify different preparations, such as those for coagulation studies, complete blood counts, or serum chemistry. The Vacutainer system simplifies blood collection, making it a common method in clinical laboratories and healthcare settings worldwide. Its design helps ensure accurate sample volumes and reduces the risk of contamination or hemolysis. The tubes are typically made of glass or plastic and are designed for single use.