Why are premature infants more at risk for iron-deficiency anemia than full-term infants?
a. They do not nurse or take formula as well as full-term infants, so their intake of iron is considerably less.
b. Their liver and spleen are smaller and functionally less well-developed than full-term infants.
c. Premature infants use up their stores of hemosiderin within 6 to 8 weeks compared to approximately 20 weeks for full-term infants.
d. The bone marrow production of iron is depressed and does not come up to the production level of full-term infants for several months.
C
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A Incorrect. Premature infants are not more at risk for iron-deficiency anemia than full-term infants because they do not eat as well.
B Incorrect. Premature infants are not more at risk for iron-deficiency anemia than full-term infants because of the size of their liver and spleen.
C Correct. Premature infants use up their stores of hemosiderin within 6 to 8 weeks compared to approximately 20 weeks for full-term infants. These stores function to protect the infant from anemia as they can be used in lieu of dietary iron intake.
D Incorrect. Premature infants are not more at risk for iron-deficiency anemia than full-term infants because the production of iron is depressed.
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