What Is a RDW Blood Test? An RDW blood test – also known as a red blood cell distribution width blood test – is a measure of the difference in your red blood cells’ size and volume. RDW is one part of ...

The red cell distribution width (RDW) blood test measures differences in the volume and size of your red blood cells. Red blood cells help carry oxygen from the lungs to other parts of your body.

Talk to your doctor if you have signs of anemia, such as excessive fatigue, because it may be helpful to have a red cell distribution width (RDW) along with a complete blood count (CBC) test. Be ...

Increased levels of red blood cell distribution width are linked to an increased likelihood of psoriasis in women, but not in men. High red blood cell distribution width (RDW) is linked to an ...

NAINR. 2004;4(4):231-239. Mature erythrocytes are biconcave disks. RBCs with abnormal morphology may be removed from the circulation leading to anemia. Therefore, certain types of anemia may be ...