Stages of Iron Deficiency Anemia
Stage 1:
Progressive
loss of iron from storage pool
Normal
red cell production
No
evidence of anemia
50%
of U.S. infants in this stage
Ferritin…………..
Serum ferritin…
TIBC……………..
Hb…………………
D
N
N
N
Bone
marrow iron low also
Stage 2:
Exhaustion
of iron from storage pool
FEP
begins to accumulate
Transferrin
receptors increase in #
Bone
marrow iron depleted
Subclinical
symptoms
Ferritin…………..
Serum ferritin…
TIBC……………..
Hb…………………
I
D
D
N