A vacuum blood collection tube, specifically the Sodium Citrate Tube, is a type of blood collection device used in medical laboratories for the collection of blood samples for coagulation studies. Sodium citrate is an anticoagulant that prevents blood from clotting, allowing the laboratory to perform various coagulation tests.
Here are some key points about the Sodium Citrate Tube:
Purpose: The primary purpose of the Sodium Citrate Tube is to collect blood samples for coagulation studies, such as prothrombin time (PT), activated partial thromboplastin time (aPTT), and other tests that assess the clotting function of blood.
Anticoagulant: Sodium citrate is the anticoagulant used in these tubes. It works by binding to calcium ions in the blood, which are essential for the clotting process, and thereby preventing the blood from clotting during storage.
Colour Code: Vacuum blood collection tubes are often color-coded for easy identification. The Sodium Citrate Tube is typically light blue in color.
Tube Size: These tubes come in various sizes, and the size may depend on the specific requirements of the tests being performed.
Handling Instructions: It is essential to follow proper handling procedures to ensure accurate test results. Tubes should be inverted gently after collection to mix the blood with the anticoagulant. Over-inverting or vigorous shaking can cause haemolysis, which may interfere with test results.
Labelling: Proper labelling with patient information, date, and time of collection is crucial for traceability and accurate result reporting.
Storage: Blood samples collected in Sodium Citrate Tubes are typically stored at room temperature. However, it is essential to follow the specific storage and transportation instructions provided by the laboratory or manufacturer.
It’s important to note that the information provided here is general, and specific protocols may vary between laboratories. Always follow the guidelines provided by the laboratory or healthcare professional conducting the blood collection.
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