The start of blood clotting in a healthy person is from 30 seconds to 2 minutes, the end is from 3 to 5 minutes. Blood is taken from the finger into a clean and dry capillary from the Panchenkov apparatus.
The erythrocyte sedimentation rate (ESR) is directly proportional to the mass of erythrocytes, the difference in the density of erythrocytes and plasma, and inversely proportional to the viscosity of plasma.
Monocytes are formed in the red bone marrow from monoblasts. After leaving the bone marrow, where, unlike granulocytes, they do not form a bone marrow reserve, monocytes circulate in the blood from 36 to 104 hours, and then go into the tissues.
Eosinophils are cells that phagocytize Ag-AT complexes, represented mainly by IgE. After maturing in the bone marrow, eosinophils remain in the circulating blood for several hours (about 3-4), and then migrate to tissues, where their lifespan is 8-12 days.
Neutrophilic granulocytes are characterized by the presence of two types of granules in the cytoplasm: azurophilic and specific, the contents of which allow these cells to perform their functions.
The white blood cell count is the percentage ratio of different types of white blood cells in a blood smear. When assessing the white blood cell count, it is sometimes necessary to take into account the absolute content of individual types of white blood cells.
The number of white blood cells (WBC) in circulating blood is an important diagnostic indicator. Leukocytes are formed in the red bone marrow and in the lymph nodes.
