When we walked into the hospital to get diagnostic test, most of the time we have to draw blood for tests. At this point we'll see different colored blood collection tubes. Then we wonder: What do these colors represent? Are these tubes used differently? This article will answer these questions for you.
1. Red Tube
Red tube is also called No Additive Tube. Red Tube is used in the collection and preservation of biochemistry, immunology, serology, various virus detection, trace element detection, and blood bank blood test specimens in medical testing. The inner wall is specially treated to make it extremely smooth, so that platelet activity is normal and blood clotting is smooth. Provide sufficient non-contaminated serum samples for clinical testing, and can maintain the normal composition of serum for a long time and facilitate the retest of serum, with good repeatability.
2. Blue Tube
Blue Tube is also called PT Tube. Blue tube is used in the experiment of coagulation project, suitable for fibrinolytic system, set according to the ratio of anticoagulant to blood sample as 1:9, the ratio is accurate, and it is also used for blood preservation. When collecting blood, it is necessary to collect enough blood to ensure the test result. Accuracy, avoid misdiagnosis.
3. Black Tube
Black Tube is also called ESR Tube. Black Tube is commonly used clinically as an indicator of aggregation between red blood cells, which can reflect some diseases inside the body. However, ESR is a non-specific test and cannot be used to diagnose any disease alone.
4. Purple Tube
Purple Tube is also called EDTA Tube. Purple Tube is used in clinical hematology tests, cross-confusion and blood typing and other items. It is also suitable for various blood cell analyzers. It can protect blood cells comprehensively and thoughtfully, especially platelets. It can effectively prevent platelet aggregation and protect the shape and volume of blood cells. EDTA anticoagulated plasma is used for molecular biological identification of pathogenic microorganisms, parasites and bacteria.
5. Green Tube
Green tube is also called Heparin Tube. Green tube is used in the collection of blood samples for clinical plasma, emergency biochemistry, and hemorheology determination. It has little interference to blood components, does not affect the volume of red blood cells, does not cause hemolysis, has the characteristics of rapid plasma separation and wide operating temperature range. In addition to the characteristics of heparin sodium, lithium heparin can also be used for the inspection of trace elements without affecting sodium ions.
6. Yellow Tube
Yellow tube is also called Gel&Clot Activator Tube. Yellow tube is used in serum biochemistry, immunology, drug detection, etc. The coagulant is uniformly replaced on the inner wall, which can greatly shorten the blood coagulation time. Because the converted separation gel is pure, its physical and chemical properties are relatively stable, and the ability to resist high temperatures is strong. Effectively avoid the separation and denaturation of the separation gel during storage and transportation. The separation gel after centrifugation solidifies to form a barrier, which completely separates the serum and blood cells, effectively prevents the exchange of substances between the two, obtains the serum, and makes the test results more realistic.
7. Grey Tube
Grey tube is also called Glucose Tube. Grey tube is used in blood sample collection for blood sugar, glucose tolerance, red blood cell electrophoresis, anti-alkaline hemoglobin, sugar hemolysis and lactate. Due to the addition of inhibitory anticoagulant, it can effectively prevent blood glucose metabolism and solve the problem of hemolysis, so that the original state of the blood can be maintained for a long time, and the test data of blood glucose can be kept constant within 72 hours.
8. Orange Tube
Orange tube is also called Clot Activator Tube. Orange tube is used in blood collection and storage for biochemical and immunological testing in medical tests. It has a wide operating temperature range. The inner wall is specially treated to be extremely smooth. High-quality coagulant is evenly dispersed on the inner wall of the blood collection tube, and the blood sample enters the tube after full contact with it, the blood is completely coagulated within 15-30 minutes, and high-quality serum is obtained by centrifugation, which solves the problems of coagulation ad rupture of blood cells, hemolysis and fibrin precipitation.
Conclusion
In conclusion, disposable vacuum blood collection tube of different colors have their own different uses. The purpose is to ensure the accuracy of laboratory tests. Medical testing is very rigorous, and even a small deviation can affect the doctor's judgment of the condition. Therefore, the use of different colors of blood collection tube is actually to more accurately reflect our health status.
Although the multi-tube blood collection is a little troublesome, it is to let the doctor understand our health more accurately and protect our health in a scientific way.
