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. 2021 Aug 1;138(2):e55-e64.
doi: 10.1097/AOG.0000000000004477.

Anemia in Pregnancy: ACOG Practice Bulletin, Number 233

No authors listed

Anemia in Pregnancy: ACOG Practice Bulletin, Number 233

No authors listed. Obstet Gynecol. .

Abstract

Anemia, the most common hematologic abnormality, is a reduction in the concentration of erythrocytes or hemoglobin in blood. The two most common causes of anemia in pregnancy and the puerperium are iron deficiency and acute blood loss. Iron requirements increase during pregnancy, and a failure to maintain sufficient levels of iron may result in adverse maternal-fetal consequences. The purpose of this document is to provide a brief overview of the causes of anemia in pregnancy, review iron requirements, and provide recommendations for screening and clinical management of anemia during pregnancy.

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Conflict of interest statement

All ACOG committee members and authors have submitted a conflict of interest disclosure statement related to this published product. Any potential conflicts have been considered and managed in accordance with ACOG's Conflict of Interest Disclosure Policy. The ACOG policies can be found on acog.org. For products jointly developed with other organizations, conflict of interest disclosures by representatives of the other organizations are addressed by those organizations. The American College of Obstetricians and Gynecologists has neither solicited nor accepted any commercial involvement in the development of the content of this published product.

References

    1. Recommendations to prevent and control iron deficiency in the United States. Centers for Disease Control and Prevention. MMWR Recomm Rep 1998;47:1–29. (Level III)
    1. Angastiniotis M, Modell B. Global epidemiology of hemoglobin disorders. Ann N Y Acad Sci 1998;850:251–69. (Level II-3)
    1. Means RT. Iron deficiency and iron deficiency anemia: implications and impact in pregnancy, fetal development, and early childhood parameters. Nutrients 2020;12(2):447. (Level III)
    1. Bothwell TH. Overview and mechanisms of iron regulation. Nutr Rev 1995;53:237–45. (Level III)
    1. Ontario Association of Medical Laboratories. Guidelines for the use of serum tests for iron deficiency (CLP 002). Toronto: OAML; 2012. Accessed April 21, 2021. https://oaml.com/wp-content/uploads/2016/05/IronDeficiencyFinalMarch2012... . (Level III)