Transferrin receptors can be measured and are elevated when:
a. Erythropoietin increases.
b. Transferrin increases.
c. Iron stores are decreased.
d. Chronic disease is present.
ANS: C
When iron is deficient, the concentration of transferrin receptors increases. They are decreased in chronic disease. Erythropoietin and transferrin concentration do not affect the concentration of transferrin receptors.
Health Professions
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