The main features of Blood Collection Tubes
Blood Collection Tubes support the collection of various types of blood samples, such as whole blood, serum and plasma. Each type is suitable for different types of laboratory tests. Common additives include EDTA tubes (purple caps) used for complete blood count (CBC) and other tests that require preventing blood coagulation, and heparin tubes (green caps) suitable for clinical biochemical analyses such as electrolyte determination and capable of effectively preventing blood coagulation without affecting enzyme activity. Clot activation tubes (red caps) are used to collect serum samples and allow the blood to coagulate naturally before separating the serum for most biochemical tests. Sodium citrate tubes (blue caps) are mainly used to maintain the anticoagulant state of the blood and are suitable for tests such as PT (prothrombin time) and APTT (activated partial thromboplastin time). And a sodium fluoride/potassium oxalate tube (gray cap) that is particularly suitable for measuring blood glucose levels and stabilizing blood glucose concentration by inhibiting glycolytic enzymes with sodium fluoride. These test tubes are designed with a vacuum, and the vacuum degree is pre-set. They can automatically and quantitatively collect the required amount of blood, reducing human errors and improving the efficiency and accuracy of collection. Each test tube is provided with a writing area or label to clearly mark necessary information such as the patient's name, ID, collection date and time, ensuring the traceability of the sample and the accuracy of management. In addition, depending on the additives they contain, blood samples may need to be transported and stored under specific conditions, such as refrigeration or freezing, to ensure sample quality and the accuracy of subsequent analysis. These characteristics make blood collection test tubes indispensable and important tools in modern medicine and scientific research.
