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The hematocrit is the ratio of the total volume of blood to the total volume of red blood cells, and is measured as part of a complete blood count. This is the primary test done to determine if a ...
Anemia is typically diagnosed on a complete blood count. Apart from reporting the number of red blood cells and the hemoglobin level, the automatic counters also measure the size of the red blood cells by flow cytometry, which is an important tool in distinguishing between the
Further studies will be undertaken to determine the anemia's cause. If the anemia is due to iron deficiency, one of the first abnormal values to be noted on a complete blood count, as the body's iron stores begin to be depleted, will be a high red blood cell distribution width, reflecting an increased variability in the size of red blood cells.
Anemia is not a diagnosis on its own, but it points to an underlying condition affecting the person's red blood cells. [88] General causes of anemia include blood loss, production of defective red blood cells (ineffective erythropoeisis), decreased production of red blood cells (insufficient erythropoeisis), and increased destruction of red ...
In stage 3, anemia (reduced hemoglobin levels) is present but red blood cell appearance remains normal. [4] Changes in the appearance of red blood cells are the hallmark of stage 4; first microcytosis and then hypochromia develop. [4] Iron deficiency begins to affect tissues in stage 5, manifesting as symptoms and signs. [4]
Microangiopathic hemolytic anemia may be suspected based on routine medical laboratory tests such as a CBC (complete blood cell count). Automated analysers (the machines that perform routine full blood counts in most hospitals) are designed to flag blood specimens that contain abnormal amounts of red blood cell fragments or schistocytes. [2]
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