Article: Anemia: when is it iron deficiency? (Primary Care Approaches).

Department Editor's Note: Part 1 of this two part series will present an overview of red blood cell and hemoglobin physiology and specifically address iron deficiency anemia, the most common childhood anemia. Part 2, "Anemia: When is it Not Iron Deficiency?," will focus on additional causes of anemia in the infant and child and present strategies for detection and management.

Anemia, and specifically iron deficiency anemia, is an important health care concern. The World Health Organization calls iron deficiency the most common anemia (Centers for Disease Control [CDC], 2002), as it is estimated to affect approximately 2 billion people worldwide. In developing ...

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