Serum ferritin values in Nigerian pregnant women

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Abstract
Serum ferritin values have been studied in 28 indigenous Nigerian pregnant women during the second and third trimesters of pregnancy. The mean serum ferritin value in the second trimester is higher than that in the third trimester, however, the difference is not statistically significant. When our results are related to those of Fenton and co-workers in 1977 (Fenton V, Cavill I, Fisher J: Iron stores in pregnancy. Br J Haem 37: 145, 1977) it appears that serum faith ferritin decreases in early pregnancy and that this decrease is maintained through the second and third trimesters and towards term, irrespective of adequate iron supplementation. It also seems that the pre-pregnancy serum ferritin level is achieved 5-8 weeks post-delivery. Our results also underline the sensitivity of serum ferritin evaluation in pregnancy, and reinforce the concept that fetal requirement for iron occurs significantly during the later half of pregnancy.