<P> Iron Deficiency Anemia: usually presents with high RDW with low MCV </P> <P> Folate and vitamin B12 deficiency anemia: usually presents with high RDW and high MCV </P> <P> Mixed Deficiency (Iron + B12 or folate) anemia: usually presents with high RDW and variable MCV </P> <P> Recent Hemorrhage: typical presentation is high RDW with normal MCV </P>

What does elevated rdw mean in a blood test