Erythrocyte distribution width sd is the standard deviation of erythrocyte distribution width, which is an indicator of whether the size of red blood cells in the blood is uniform, as well as the degree of dispersion, and is mainly used for the diagnosis of iron-deficiency anemia and assessment of the efficacy of treatment.
The normal reference range of the standard deviation of erythrocyte distribution width is 35~56 fL. A low standard deviation of the standard deviation of erythrocyte distribution width indicates that the red blood cells are more uniform than normal, which is of little clinical significance; while a high standard deviation suggests various kinds of anemia, hematopoietic abnormality, or congenital abnormalities of red blood cells.
Therefore, when the standard deviation of red blood cell distribution width is high, if it is combined with the abnormalities of hemoglobin and the average hemoglobin concentration of red blood cells, it suggests that there may be anemia or hematologic diseases, and it is recommended to consult with a doctor to clarify the specific causes of the disease.
It is recommended to consult a doctor to clarify the cause of the disease. According to the standard deviation of red blood cell distribution width, hemoglobin and other indicators, the patient should consult a doctor in time and follow the doctor’s instructions to actively treat the disease.