Defined as increased heterogeneity (or variation) in red blood cell (RBC) size, which can be measured as cell diameter (on a peripheral smear) or cell volume (using the red cell distribution width [RDW] generated by an automated counter).
![](https://www.thebloodproject.com/wp-content/uploads/2022/06/image-180.png)
Jun
23
2022
Defined as increased heterogeneity (or variation) in red blood cell (RBC) size, which can be measured as cell diameter (on a peripheral smear) or cell volume (using the red cell distribution width [RDW] generated by an automated counter).