Introduction of the use of blood collection tube

Date:2020-05-21 Browse:10
Core tips:The blood-colored head cover, blood collection tube does not contain an increase agent, is used for routine serum bioche
blood-colored头罩,采血浴缸e does not contain an increase agent, is used for routine serum biochemistry, blood bank and serology contact to check. The orange blood-colored head cover has a coagulant in the blood collection tube, which can activate the fibrin protein enzyme, so that the soluble fibrin protein becomes an insoluble fibrin protein polymer, thereby forming a strong fibrin protein clot. The rapid serum tube can consolidate the blood in the network within 5 minutes, which is practical for serialization of emergency serum.
Golden head cover, lazy separation gel and coagulant are added in the blood collection tube. After the specimen is centrifuged, the lazy separation gel can completely separate the liquid identity (serum or plasma) and solid identity (red blood cells, white blood cells, platelets, fibroproteins, etc.) in the blood and stack them in the center of the test tube to form a shield. The specimen is at 48 Stay strong within hours. The coagulant can quickly activate the coagulation mechanism and speed up the coagulation process, which is practical for the implementation of emergency biochemical serum.
Green head cover, heparin increased in blood collection tube. Heparin directly has antithrombin results, which can extend the time of specimen coagulation. It is actually used for the fragile implementation of red blood cells, blood gas analysis, implementation of hematocrit, erythrocyte sedimentation rate and universal energy biochemical determination, and is not suitable for hemagglutination. Excessive heparin can cause the aggregation of white blood cells, which cannot be used for white blood cell counting. Because it can make the blood stains light blue, it is not suitable for the classification of white blood cells.
The light green head cover, which participates in the heparin lithium anticoagulant in the lazy separation tube, can reach the intention of quickly separating plasma, is the best choice for electrolyte testing, and can also be used for routine plasma biochemical determination and ICU and other emergency plasma biochemical detection. Plasma specimens can be directly put on the machine and persist for 48 hours under refrigeration.
The purple head cap, ethylenediaminetetraacetic acid (EDTA, molecular weight 292) and its salt is an amino polycarboxylic acid, which can approximately chelate calcium ions in blood samples, chelate calcium or remove the calcium echo site to remove Block and prevent the endogenous or exogenous coagulation process, and then prevent the blood specimen from consolidating. It is actually used for general hematological examination, not for coagulation and platelet compliance inspection, but also for calcium, potassium, sodium, iron, alkaline phosphatase, creatine kinase and leucine aminopeptidase. And PCR implementation.
Light blue head cover, sodium citrate chelate with calcium ions in blood samples to achieve anti-solid results. It is actually used for coagulation. The recommended concentration of anticoagulants recommended by the National Committee for Clinical Laboratory Standards (NCCLS) is 3.2% or 3.8% (equivalent to 0.109mol / L or 0.129mol / L). The ratio of agent to blood is 1: 9.
For the black head, the concentration of sodium citrate required for the implementation of ESR is 3.2% (equivalent to 0.109mol / L). The ratio of anticoagulant to blood is 1: 4.
Gray head cover, sodium fluoride is a weak anticoagulant. It is usually used by swallowing potassium oxalate or sodium iodate, the ratio is 1 part of sodium fluoride and 3 parts of potassium oxalate. This mixture of 4mg can prevent 1ml of blood from consolidating and suppressing glucose differentiation in 23 days. It is an excellent storage agent for blood glucose measurement. The determination of enzymes is recommended for blood glucose testing.
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