Anemia

Health

What is RDW in a Blood Test?

Understanding RDW and its significance in blood tests Red cell Distribution Width (RDW) is a measurement of the variation in size of red blood cells (RBCs) in a blood sample. Typically, red blood cells are of a similar size, and the RDW value is low. However, when there is a significant variation in the size of the RBCs, the RDW…