RDW= (MCV standard deviation/ MCV) x 100
Quiz of a day: "If the standard deviation is a fixed number, why does the RDW increase whether MCV is increased or decreased? I understand that in both iron deficiency and megaloblastic anemia it should be increased cause it shows the volume differentiation but it is mathematically obscure to me."
Read the explanation and more from the Pathology Student´s blog:
Making sense out of the RDW
Source: Pathology Student Blog