Normal levels of RBCs at birth range from 5.1 to 5.3 million/mm 3 for term newborns and 4.6 to 5.3 million/mm 3 for premature neonates. [] Nucleated red blood cells (NRBC) are immature ...

Since the early stages of both microcytic anemias and macrocytic anemias can present with a normal MCV, serum transferrin receptor, serum ferritin or serum B 12, and folate levels should be ...

Diet is frequently a cause resulting in either microcytic or macrocytic anemia, smaller or larger than normal RBCs respectively. Iron, vitamin B12, and folate (Vitamin B9) are usually involved.

Microcytic anemia, classification of anemia characterized by abnormally small RBCs; usually seen in chronic blood loss or iron deficiency anemia. MCV is low and RDW is increased.