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An RDW (red blood cell distribution width) blood test measures how varied your red blood cells are in size and volume. Your red blood cells carry oxygen from your lungs to organs and tissues throughout your body. The oxygen fuels your body’s cells so that they can produce energy.
Red blood cell distribution width (RDW) is the variation of the size/volume of your red blood cells. Basically, it tells you how equal or unequal your red blood cells are in size . It is a part of a complete blood count, which also measures your hemoglobin , hematocrit , and red and white blood cell counts [ 2 , 3 ].
RDW, which stands for the red cell distribution width, measures variances in the volume and size of your red blood cells. Usually, your red blood cells are around the same size. If RDW is outside a typical range, it could indicate an underlying medical condition.
RDW blood tests measure the size and volume of your red blood cells. They are used to help diagnose anemia and other blood disorders. Learn more.
A red cell distribution width (RDW) test is a type of blood test that indicates variations in the size of a person’s red blood cells. It can confirm an anemia diagnosis and help...
A red cell distribution width (RDW) blood test helps measure variation in red blood cell volume and size. Learn why it’s performed and how to read results.
Red cell distribution width (RDW) is a measure of variation in the size of red blood cells. A high RDW may be a sign of anemia, liver disease, and even cancer.