Application of common and procoagulant blood collection vessels
1. The red cap of the common serum tube, without additives, is used for routine serum biochemical, blood bank and serological tests.
2. The rapid serum tube is orange red with coagulant in the blood collection vessel, which can activate fibrin, change soluble fibrin into insoluble fibrin polymer and form stable fibrin clot. The rapid serum tube can coagulate the collected blood in 5 minutes, which is suitable for the series test of emergency serum.
3. Inert separation gel and coagulant were added into the blood collection vessel. After centrifugation, the inert separation 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. The sample remains stable within 48 hours. Coagulant can quickly activate coagulation mechanism and accelerate coagulation process, which is suitable for emergency serum biochemical test.
4. Green cap of heparin anticoagulant tube, heparin was added into the blood collection vessel. Heparin has the effect of antithrombin directly and can prolong the clotting time. It is suitable for erythrocyte fragility test, blood gas analysis, hematocrit test, ESR and general biochemical test, but not suitable for hemagglutination test. Excessive heparin can cause leukocyte aggregation and can not be used for leukocyte count. It can make the background of blood smear pale blue after staining, so it is not suitable for leukocyte classification
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