[0] Iron deficiency [1] Low [2] High [4] Normal or decreased [5] Dietary—might be difficult to differentiate from anemia of chronic disease with low iron stores [3] 
Low (if not masked by other causes)
M e a n C o r p u s c u l a r V o l u m e
N o r m a l o r l o w
L o w ( i f n o t m a s k e d b y o t h e r c a u s e s )
N o r m a l t o h i g h
N o r m a l