Hematology/Haematology - Anemia/Anaemia: Folate and B12 Deficiency Background 

 
Anemia is characterized by reductions in hemoglobin and/or circulating red blood cell (RBC) mass to below cut-offs specific to age and gender (1). Anemia is generally a sign of a problem as opposed to a disease on its own. Hence, it is important to identify the underlying cause(s). Anemia is generally classified into three categories of microcytic, normocytic and macrocytic. Mean corpuscular volume (MCV) (the average volume of the RBC) is generally <80 fL with microcytic anemia, 80-100 fL
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