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Book

Iron Deficiency Anemia

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
.
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Book

Iron Deficiency Anemia

Matthew J. Warner et al.
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Excerpt

Anemia is defined as hemoglobin below two standard deviations of the mean for the age and gender of the patient. Iron is an essential component of the hemoglobin molecule. The most common cause of anemia worldwide is iron deficiency, which results in microcytic and hypochromic red cells on the peripheral smear. Several causes of iron deficiency vary based on age, gender, and socioeconomic status. The patient often will have nonspecific complaints such as fatigue and dyspnea on exertion. Treatment is a reversal of the underlying condition as well as iron supplementation. Iron supplementation is most often oral, but certain cases may require intravenous iron. Patients with iron-deficient anemia have been found to have a longer hospital stay, along with a higher number of adverse events.

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Conflict of interest statement

Disclosure: Matthew Warner declares no relevant financial relationships with ineligible companies.

Disclosure: Muhammad Kamran declares no relevant financial relationships with ineligible companies.

References

    1. Wawer AA, Jennings A, Fairweather-Tait SJ. Iron status in the elderly: A review of recent evidence. Mech Ageing Dev. 2018 Oct;175:55-73. - PubMed
    1. Long B, Koyfman A. Emergency Medicine Evaluation and Management of Anemia. Emerg Med Clin North Am. 2018 Aug;36(3):609-630. - PubMed
    1. Govindappagari S, Burwick RM. Treatment of Iron Deficiency Anemia in Pregnancy with Intravenous versus Oral Iron: Systematic Review and Meta-Analysis. Am J Perinatol. 2019 Mar;36(4):366-376. - PubMed
    1. Khan L. Anemia in Childhood. Pediatr Ann. 2018 Feb 01;47(2):e42-e47. - PubMed
    1. Brissot P, Bernard DG, Brissot E, Loréal O, Troadec MB. Rare anemias due to genetic iron metabolism defects. Mutat Res Rev Mutat Res. 2018 Jul-Sep;777:52-63. - PubMed

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