The serum iron and TIBC results given in Question 10 are consistent with:
a. Iron overload
b. Iron toxicity
c. Iron deficiency
d. Acute infection
ANS: C
A percent saturation of 2% is consistent with severe iron deficiency. Iron overload and iron toxicity are situations in which the percent saturation would be high. In an acute infection, the anemia of chronic inflammation (also called anemia of chronic disease) might develop if the infection becomes chronic; percent saturation would be decreased below normal, but it would not become this low (and the infection would have to be fairly long-standing and chronic).
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