CBC
Macrocytic anemia (MCV>100 fL)
RDW high
Hypersegmented neutrophils
Red blood cell folate level < 150 ng/mL
Macrocytic anemia (MCV>100 fL)
RDW high
Hypersegmented neutrophils
Vitamin B9 deficiency
Hemorrhage
Vitamin B7 deficiency
Hereditary
Vitamin B12 deficiency
Acquired
Vitamin E deficiency
Microangiopathic Hemolytic Anemia 