lymphocyte count

This is a group of heterogeneous cells with similar morphology and different functions. It is a specific immunocompetent cell and plays a central role in the immune response. In the case of general disease, the number changes little, and the proportion of other cells in the blood is often increased or decreased due to the decrease or increase of other cells in the blood. Lymphocyte changes are more valuable than quantitative increase and decrease. If the subpopulation of lymphocytes is not measured, the clinical significance is limited. Basic Information Specialist classification: cardiovascular examination classification: blood examination Applicable gender: whether men and women apply fasting: fasting Tips: After 8 pm on the day before the medical examination, you should start fasting for 12 hours. Normal value Blood cell automatic counter (1 ~ 4) × 109 / L (1000 ~ 4000 / mm3). Clinical significance Abnormal result (1) Lymphocytosis. 1 infection with whooping cough, infectious mononucleosis, acute infectious lymphocytosis, mumps, rubella, tuberculosis, syphilis, recovery period of acute infectious diseases. 2 blood diseases chronic lymphocytic leukemia, lymphosarcoma, heavy chain disease. 3 endocrine gland disease hyperthyroidism, chronic adrenal insufficiency and so on. 4 other renal transplant rejection, nutritional disorders, acute poisoning recovery period. (2) lymphopenia 1 Infected with lymphatic tuberculosis, miliary tuberculosis, typhoid fever, pneumonia, early infectious diseases, etc. 2 tumor eosinophilic lymphogranuloma, lymphosarcoma, reticulum sarcoma and the like. 3 drugs after ACTH, adrenocortical hormone and so on. 4 After radiation exposure. Low results may be diseases: Pediatric pneumonia, typhoid fever results may be high disease: lymphoma precautions Contraindications before the examination: After 8 pm on the day before the medical examination, fasting should be started for 12 hours to avoid affecting the test results. Requirements for examination: lymphopenia, disappearance of eosinophils, indicating severe infection, severe disease, and poor prognosis. Inspection process Methods The absolute value of CD4+ T lymphocytes was determined by FACSCalibur flow cytometry of American BD Company. The total number of lymphocytes was divided into 3 categories according to the peripheral blood CD4+ T lymphocyte count to correspond to different CD4+ T lymphocyte counts. range. The regression equation between the two was established, and the ROC curve was drawn at the same time. Three methods for predicting the absolute value of CD4+ T lymphocytes by peripheral blood lymphocytes were summarized. Not suitable for the crowd Generally no taboos. Adverse reactions and risks Generally not.