<P> Mixed - deficiency (iron + B12 or folate) anemia usually presents with high RDW and variable MCV . </P> <P> Recent hemorrhages typically present with high RDW and normal MCV . </P> <P> A false high RDW reading can occur if EDTA anticoagulated blood is used instead of citrated blood . See Pseudothrombocytopenia . </P>

What does it mean to have a high rdw