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An RDW blood test measures your red blood cells’ variation in size and volume. Along with other tests, an RDW blood test can help your healthcare provider diagnose anemia.
What does it mean if your RDW is high? If your RDW is high, it means there is a large variation between the size and volume of your red blood cells. A high RDW level can indicate:
A high RBC count and a high RDW can indicate polycythemia, a condition characterized by excessive RBC production (Fischbach & Dunning, 2009). This requires further diagnostic tests to explore the underlying cause.
A high RDW means that your red blood cells are unequal in size. This condition is called anisocytosis [ 2 , 3 ]. It happens when, for any reason, the body is having issues producing red blood cells.
A high RDW means that the size of your red blood cells varies more than it should. The sizes will be more spread out on the histogram. This may be a sign of a medical condition. Other names: RDW-SD (standard deviation) test, Erythrocyte Distribution Width. What is it used for?
If your RDW blood test is high, it means there is a greater variation in the size of your red blood cells. A high RDW may be a sign of anemia or another nutrient deficiency. This article covers why RDW blood tests are done, how the results are interpreted, and what to expect if you are having an RDW blood test.
High RDW values may mean you have a nutrient deficiency, anemia, or other underlying condition. Why is the RDW test done? The RDW test is used to help diagnose types of anemia and other...
If your RDW blood test is high, it means there is a greater variation in the size of your red blood cells. This is called anisocytosis. A high RDW may be a sign of a nutrient deficiency. This article covers why RDW blood tests are done, how the results are interpreted, and what to expect if you are having an RDW blood test.
A high RDW can indicate that a person has an underlying condition, some of which can cause fatigue. For example, a high RDW can indicate anemia, of which fatigue is a symptom.
Changes in the size of your red blood cells often represent a sign of an underlying medical condition, such as anemia (a reduced number of red blood cells or hemoglobin). Your healthcare provider...