blood analyzer check

Automated blood analyzers are now widely used in major hospitals, which can quickly detect multiple specimens and provide multiple detection indicators at a time. 1. White blood cell count, red blood cell count, hemoglobin amount, platelet count, and white blood cell classification refer to the corresponding blood test above. 2. The hematocrit is obtained from the average volume of red blood cells x red blood cell count. 3. The distribution of red blood cells represents the degree of uniformity of red blood cell size. When the red blood cell size is not uniform, the red blood cell distribution width value increases, such as various types of nutritional deficiency anemia. 4. The three average indices of red blood cells are used for the identification of anemia types. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: Try to reduce the amount of exercise before blood draw, do not eat food, keep fasting, you can drink a small amount of water, in addition to some drugs that must be taken on time, try to take other drugs to the blood and then take it, so as not to some experiments The result is interference. Normal value White blood cell count: (WBC) (4 ~ 10) × 109 / L. Red blood cell count: (RBC) (3.8 to 5.5) × 1012 / L. The amount of hemoglobin: (Hb) (110 to 170) × g / L. Hematocrit: (Hct) 36% to 50%. The average volume of red blood cells: (MCV) 80 to 100. Clinical significance 1. White blood cell count, red blood cell count, hemoglobin amount, platelet count, and white blood cell classification refer to the corresponding blood test above. 2. The hematocrit is obtained from the average volume of red blood cells x red blood cell count. 3. The distribution of red blood cells represents the degree of uniformity of red blood cell size. When the red blood cell size is not uniform, the red blood cell distribution width value increases, such as various types of nutritional deficiency anemia. 4, the three average index of red blood cells for the identification of anemia type: (1) The increase in the average hemoglobin content of red blood cells is seen in megaloblastic anemia, which is reduced in iron deficiency anemia, chronic blood loss anemia, uremia, and chronic inflammation. (2) The increase of the average volume of red blood cells is seen in hemolytic anemia and megaloblastic anemia; the reduction is seen in severe iron deficiency anemia and hereditary spherocytosis. (3) The average hemoglobin concentration of red blood cells is reduced in chronic hemorrhagic anemia and iron deficiency anemia; various diseases can be in the normal range. The megaloblastic anemia, the average volume of red blood cells increases, the average hemoglobin content of red blood cells increases, the average hemoglobin concentration of red blood cells is normal, and the distribution width of red blood cells increases. 5. The average volume of platelets averages the volume of each platelet, and the size of platelets is related to its function. (1) Increased in primary thrombocytopenic purpura, late pregnancy with edema and proteinuria. (2) Reduction in non-immune platelet destruction, aplastic anemia, thrombocytopenic recurrent infection syndrome, chronic myeloid leukemia, and the like. Precautions First, the precautions before blood draw 1, do not eat too greasy, high-protein food the day before the blood, to avoid heavy drinking. The alcohol content in the blood directly affects the test results. 2. After 8 pm on the day before the physical examination, fasting should be done to avoid affecting the detection of indicators such as blood glucose in the second sky. 3, should relax when taking blood, to avoid the contraction of blood vessels caused by fear, increase the difficulty of blood collection. Patients with a history of fainting should explain in advance and will make special arrangements. Second, should pay attention after blood draw 1. After blood is drawn, local compression is required at the pinhole for 3-5 minutes to stop bleeding. Note: Do not rub, so as not to cause subcutaneous hematoma. 2, the pressing time should be sufficient. There is a difference in clotting time for each person, and some people need a little longer to clotting. Therefore, when the surface of the skin appears to be bleeding, the compression is stopped immediately, and the blood may be infiltrated into the skin due to incomplete hemostasis. Therefore, the compression time is longer to completely stop bleeding. If there is a tendency to bleed, the compression time should be extended. 3, after the blood draw symptoms of fainting such as: dizziness, vertigo, fatigue, etc. should immediately lie down, drink a small amount of syrup, and then undergo a physical examination after the symptoms are relieved. 4. If there is localized congestion, use a warm towel after 24 hours to promote absorption. Inspection process Combined detection of electrical impedance and radio frequency conductance: This method uses four detection systems to detect different types of cell 1 lymphocyte, monocyte and neutrophil detection system: adding hemolytic agent to the cell suspension to dissolve red blood cells, leaving the white blood cells intact, cells The plasma and nuclear morphology are similar to the physiological state. When these cells pass through the detection system, the white blood cells are subjected to a combined detection of electrical impedance (measured cell volume) and radio frequency conductance (detection of nuclear and particle density), and the cells are divided into lymphocytes. Three groups of mononuclear fine and neutrophils. 2 eosinophils and basophils two detection systems: in the cell suspension Huai added special hemolytic agents, in addition to eosinophils and basophils, other cells are dissolved or atrophy, and then remain intact Acidic cells or basophils are counted. 3 immature cell detection system: the addition of sulfurized amino acids in the cell suspension Huai, due to different occupancy, the amino acid bound in the naive cells is more than the mature cells, and has a resistance to the hemolytic agent, when the hemolytic agent is added, the mature cells are dissolved, Only the naive cells that may be present are retained for counting. Not suitable for the crowd 1. Patients who have taken contraceptives, thyroid hormones, steroid hormones, etc., may affect the results of the examination and prohibit patients who have recently taken the drug history. 2, special diseases: patients with hematopoietic function to reduce disease, such as leukemia, various anemia, myelodysplastic syndrome, etc., unless the examination is essential, try to draw less blood. Adverse reactions and risks 1, subcutaneous hemorrhage: due to pressing time less than 5 minutes or blood draw technology is not enough, etc. can cause subcutaneous bleeding. 2, discomfort: the puncture site may appear pain, swelling, tenderness, subcutaneous ecchymosis visible to the naked eye. 3, dizzy or fainting: in the blood draw, due to emotional overstress, fear, reflex caused by vagus nerve excitement, blood pressure decreased, etc. caused by insufficient blood supply to the brain caused by fainting or dizziness. 4. Risk of infection: If you use an unclean needle, you may be at risk of infection.

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