Use EDTA: Complete Blood Count Tube

EDTA is an amino polycarboxylic acid that can effectively chelate calcium ions in the blood. Chelating calcium removes it from the reaction site, which prevents and terminates both endogenous and exogenous coagulation processes, thereby preventing blood clotting. Compared to other anticoagulants, it has a smaller impact on the aggregation of blood cells and the morphology of blood cells. Therefore, EDTA salts (2K, 3K, 2Na) are commonly used as anticoagulants. They are used for general hematological tests but cannot be used for coagulation, trace element, and PCR tests.

EDTA is an amino polycarboxylic acid that can effectively chelate calcium ions in the blood. Chelated calcium will remove calcium from the reaction site, preventing and terminating endogenous or exogenous coagulation processes, thus preventing blood clotting. Compared to other anticoagulants, it has a smaller impact on the aggregation of blood cells and the morphology of blood cells. Therefore, EDTA salts (2K, 3K, 2Na) are commonly used as anticoagulants. It is used for general hematological tests and cannot be used for coagulation, trace elements, and PCR tests.

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