Red blood cell distribution width sd and cv, is everyone clear? I don't know what these mean. Simply put, these are data, which can best reflect a person's health. Normal data means good health, and abnormal data means abnormal health, so let's look at sd and cv in red blood cell distribution width.
Red blood cell distribution width sd and cv 1
What do sd and cv in red blood cell distribution width stand for respectively?
Red blood cell distribution width RDW is a parameter reflecting the heterogeneity of red blood cell volume, which is expressed by the coefficient of variation of red blood cell volume, which is more objective and accurate than observing the uneven shape and size of red blood cells on blood smear. If it is easy to understand, it is the consistency of the size and shape of red blood cells in the sample blood. The larger the width, the different the shape and size of red blood cells in the sample blood. Exceeding the normal value often indicates various anemia, hematopoietic abnormality or congenital red blood cell abnormality. The small distribution width indicates that the red blood cells in the sample are consistent in shape and size and very neat.
The purpose of red blood cell distribution width standard deviation and coefficient of variation detection.
The purpose of red blood cell distribution width sd and cv examination is mainly used for the diagnosis and curative effect observation of iron deficiency anemia: in iron deficiency anemia, the increase of RDW is reflected earlier than the decrease of MCV, which is an indication of early iron deficiency; When MCV decreases, RDW increases more significantly; When iron is given and effective, RDW will be larger than before administration, and then gradually decrease to normal level;
Sd and cv2 in red blood cell distribution width
What does sd mean in red blood cell distribution width?
Red blood cell distribution width sd coefficient of variation is a parameter reflecting the heterogeneity of red blood cell volume, which is more objective and accurate than observing the uneven shape and size of red blood cells on blood smear.
What is the low sd in red blood cell distribution width?
Red blood cell distribution width low indicates that the size and volume of red blood cells are relatively uniform, while high indicates that the size and size of red blood cells are different, and everyone's red blood cell morphology is different. Only this indicator is low, other indicators are normal, and the clinical significance is not great, so don't worry too much. When the index is high, it often suggests anemia or hematopoietic dysfunction, and when it is low, it has little clinical significance.
SD in red blood cell distribution width is relatively low, which generally means that red blood cells are concentrated uniformly by volume, that is to say, the size of red blood cells is similar. If red blood cells, HCT and HGB are normal, this item has no special clinical significance. Decreased platelet distribution width indicates thrombocytopenia. If thrombocytopenia occurs, further examination is needed to confirm the diagnosis and try to avoid traumatic bleeding.