Blood collection, you are not new. When you go to the hospital to take a blood sample, you will definitely use blood collection. The blood collection additives added to the test tubes with different color caps are different, and the blood collection vessels with different color are also different in terms of test items. What's the difference? Let's introduce the classification of blood collection vessels and the meaning of different color test tube caps.
Purple cap blood vessel
The anticoagulant containing EDTA-K2 in the blood vessel is usually sprayed so that the anticoagulant can be evenly distributed to the tube wall and the specimen is whole blood. This can make the blood even contact with the two potassium solution and achieve better results, which is generally suitable for routine hematological examination.
Green cap blood vessel
It is also called heparin tube. The blood collection vessel contains heparin sodium or heparin lithium. Heparin has the function of antithrombin directly, which can prolong the clotting time of the sample. It is generally suitable for routine biochemistry and emergency plasma detection, which has certain influence on some special biochemical items, and it is not suitable for routine hemagglutination and blood test. Heparin is a kind of mucopolysaccharide containing sulfuric acid gene, with strong negative charge, with It has the function of strengthening antithrombin to inactivate serine protease, so as to prevent the formation of thrombin, and has many anticoagulant functions such as preventing platelet aggregation. Generally, 15iu heparin can anticoagulate 1ml blood.
Red cap blood vessel
There is no additive in the blood collection vessel, which is suitable for routine biochemical serum test and has no effect on the test results. Disadvantages: improper centrifugation or insufficient incubation time, easy to form fibrin, easy to block the pinhole of the equipment.
Collecting blood vessels with orange test tube cap
The coagulant added to the blood vessels can activate the fibrin, promote the soluble fibrin to form a stable fibrin clot, and the blood collected can quickly coagulate and centrifugate out, and the results can be obtained quickly. It is generally applicable to some emergency experiments in hospitals.
Through understanding, we found that the additives in the blood vessels of different color caps are different, and the corresponding examination is also different. At present, Desheng technology has successfully developed and produced a new type of coagulant and put it into the market for trial use quickly. Its setting time is faster and it can be centrifuged in 10 minutes. It meets the demand of many hospitals for quick results in emergency experiments. Desheng technology has been used as an additive for blood collection for more than ten years. In terms of quality, it can completely compete with imported enterprises. Welcome to all major enterprises Business comes to order.
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