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Blood clot. Coloured scanning electron micrograph (SEM) of a blood clot from the inner wall of the left ventricle of a human heart. Red blood cells (erythrocytes) are trapped within a fibrin protein mesh (cream). The fibrin mesh is formed in response to chemicals secreted by platelets (pink), fragments of white blood cells. Clots are formed in response to cardiovascular disease or injuries to blood vessels. Connective tissue (orange) is also seen.
The Interior wall of the tube is evenly sprayed and coated with either EDTA K2, EDTA K3. Compared with other anticoagulant, EDTA anticoagulant has less influence on the blood cells and cellular morphology. Its Laboratory use is mainly for whole blood hematology (Red Blood Cell, While Blood Cell, Blood Platelet, Leukocyte classification, Hemoglobin and Hematocrit) tests.