verinäytteenottimet

Verinäytteenottimet, commonly known as blood collection tubes or Vacutainers, are specialized evacuated tubes used for drawing blood samples from patients. These tubes are designed to contain a precise vacuum, which automatically draws a predetermined amount of blood when the needle is inserted into a vein. This ensures a consistent sample volume and minimizes the risk of over or under-filling.

The inner surface of these tubes is often coated with various additives depending on the intended laboratory test. Anticoagulants, such as EDTA, heparin, or citrate, are used to prevent blood from clotting, preserving the cellular components and plasma for analysis. Clot activators or serum separators are also common, facilitating the separation of serum from blood cells. Different colored stoppers indicate the type of additive present, allowing for correct tube selection and ensuring the integrity of the sample for specific diagnostic purposes.

Verinäytteenottimet have significantly improved the safety and efficiency of venipuncture. The evacuated system reduces the risk of aerosolization of blood, protecting both healthcare professionals and patients. The pre-measured vacuum simplifies the collection process, making it more reliable and less prone to error. After collection, the tubes are directly transported to laboratories for analysis, streamlining the diagnostic workflow.