single-header-banner

A summary of the uses of 9 different colors of vacuum blood collection tubes

A summary of the uses of 9 different colors of vacuum blood collection tubes

In hospitals, different test items have different requirements for blood samples, including whole blood, serum and plasma. This just needs to have different blood collection tubes to match it.

Among them, in order to distinguish the use of different blood collection tubes, different cap colors are used to mark blood collection tubes internationally. Blood collection tubes with different color caps have different functions. Some have added anticoagulants, and some have added coagulants. There are also blood collection tubes without any additives.

So, what are the general types of vacuum blood collection tubes? Do you understand?

Red Cover

Serum tubes and blood collection tubes do not contain additives and are used for routine biochemical and immunological tests.

红盖 普通管

Orange Cover

There is a coagulant in the blood collection tube, which can activate fibrinase to change soluble fibrin into insoluble fibrin polymers, thereby forming a stable fibrin clot. The fast serum tube can coagulate the collected blood within 5 minutes, which is suitable for emergency series of tests.

橙盖 保凝管

Golden Cover

Inert separation gel coagulation accelerator tube, inert separation gel and coagulation accelerator are added in the blood collection tube. After the specimen is centrifuged, the inert separating gel can completely separate the liquid components (serum or plasma) and solid components (red blood cells, white blood cells, platelets, fibrin, etc.) in the blood, and completely accumulate in the center of the test tube to form a barrier. remain stable inside. Coagulants can quickly activate the coagulation mechanism and accelerate the coagulation process, and are suitable for emergency series of tests.

黄盖 分离胶+促凝剂管

Green Cover

Heparin anticoagulation tube, heparin is added in the blood collection tube. It is suitable for blood rheology, red blood cell fragility test, blood gas analysis, hematocrit test, and general biochemical determination. Heparin has the effect of antithrombin, which can prolong the clotting time of the specimen, so it is not suitable for hemagglutination test. Excessive heparin can cause aggregation of white blood cells and cannot be used for white blood cell counts. It is also not suitable for morphological examination because it can make the background of the blood film stained light blue.

绿盖 肝素锂肝素钠管

Light Green Cover

Plasma separation tube, adding heparin lithium anticoagulant in the inert separation rubber tube, can achieve the purpose of rapid plasma separation. It is the best choice for electrolyte detection, and can also be used for routine plasma biochemical determination and emergency plasma biochemical detection such as ICU.

Purple Cover

EDTA anticoagulant tube, the anticoagulant is ethylenediaminetetraacetic acid (EDTA), which can combine with calcium ions in the blood to form a chelate, so that Ca2+ loses the coagulation effect, thereby preventing blood coagulation. Suitable for multiple blood tests. However, EDTA affects platelet aggregation, so it is not suitable for coagulation tests and platelet function tests, nor is it suitable for calcium ions, potassium ions, sodium ions, iron ions, alkaline phosphatase, creatine kinase and PCR tests.

紫盖 常规管

Light Blue Cover

Sodium citrate anticoagulant tube, sodium citrate mainly plays an anticoagulant effect by chelating calcium ions in blood samples, and is suitable forcoagulation tests.

蓝盖 柠檬酸钠1:9管

Black Cover

Sodium citrate erythrocyte sedimentation test tube, the concentration of sodium citrate required for erythrocyte sedimentation test is 3.2% (equivalent to 0.109mol/L), and the ratio of anticoagulant to blood is 1:4.

黑盖 柠檬酸钠1:4管

Grey Cover

Potassium oxalate/sodium fluoride, sodium fluoride is a weak anticoagulant, usually combined with potassium oxalate or sodium iodate, the ratio is 1 part of sodium fluoride, 3 parts of potassium oxalate. It is an excellent preservative for blood glucose determination. It cannot be used for the determination of urea by urease method, nor for the determination of alkaline phosphatase and amylase. It is recommended for blood glucose detection.

﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌

The blood collection tubes distinguished by different cap colors are bright and eye-catching, and are easy to identify, thus avoiding the wrong use of additives during blood collection and the situation that the samples sent for inspection do not match the inspection items.


Post time: May-17-2023