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Eight kinds of vacuum blood vessels, do you know how to distinguish them?

Author : HES Medical Time :

1, common serum red head, no additives in the blood vessel, used for routine serum biochemistry, blood bank and serological correlation test.

2, the rapid serum tube orange red head, the blood vessel has coagulant, can activate the fibrin enzyme, make soluble fibrin into insoluble fibrin polymer, and then form a stable fibrin clot.

The rapid serum tube can solidify the blood collected in 5 minutes, which is suitable for the serial test of emergency serum.

3, inert separation gel coagulation tube golden head, adding inert separation gel and accelerator in the blood vessel. After centrifugation, the inert gel separates the liquid components (serum or plasma) and solid components (red blood cells, white blood cells, platelets, fibrin, etc.) completely and accumulates them in the center of the test tube to form a barrier. The specimens remain stable within 48 hours.

The coagulant can rapidly activate the clotting mechanism and accelerate the coagulation process, which is suitable for emergency serum biochemical tests.

4, heparin anticoagulant tube green skull, add heparin in the blood vessel. Heparin directly acts as antithrombin, which can prolong the clotting time of the sample.

Applicable to the erythrocyte fragility test, blood gas analysis, hematocrit test, ESR and general biochemical determination, for hemagglutination test.

Excessive heparin causes white blood cell aggregation, not counting white blood cells. It is not suitable for white blood cell classification due to its pale blue background after blood smear.

5, the plasma separation tube shallow green head, in the inert separation tube with heparin lithium anticoagulant, can achieve the purpose of rapid separation of plasma, is the best choice of electrolyte detection, also can be used for routine plasma biochemical determination and ICU and other emergency plasma biochemical test. The plasma samples can be directly exposed to the machine and kept stable for 48 hours under cold storage.

6, EDTA anticoagulant tube purple skull, ethylenediaminetetraacetic acid (EDTA, molecular weight 292) and its salts is a polyamino carboxylic acid chelating calcium in blood specimen can be effectively removed, chelating calcium or calcium reaction sites, arrest and termination of endogenous or exogenous coagulation process, thereby preventing blood coagulation.

It is suitable for general hematology test, not suitable for blood coagulation test and platelet function test. It is not suitable for the determination of calcium, potassium, sodium ion, iron ion, alkaline phosphatase, creatine kinase and leucine aminopeptidase and PCR test.

7, the sodium citrate coagulation test tube with light blue, sodium citrate and calcium mainly through blood and anticoagulant effect.

For anticoagulation experiments, the recommended concentration of anticoagulant is 3.2% or 3.8% (equivalent to 0.109mol/L or 0.129mol/L), and the ratio of anticoagulant to blood is 1:9, which is recommended by the National Committee for standardization of laboratories (NCCLS).

8, sodium citrate erythrocyte sedimentation rate test tube Black Skull, erythrocyte sedimentation test requirements of sodium citrate concentration is 3.2% (equivalent to 0.109mol/L) anticoagulant and blood ratio is 1:4.


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