Management of Mild Anemia

Assessment of Anemia Status

The patient's hemoglobin of 11.7 g/dL is below the WHO-defined threshold for anemia in adult men (13 g/dL) and close to the threshold for non-pregnant women (12 g/dL) 1, 3
Reduced MCHC (hypochromia) is a reliable marker of iron deficiency as it is less dependent on storage and counting machines compared to MCV 1

Serum ferritin (most specific test for iron deficiency) is recommended for confirming iron deficiency 1, 4
Transferrin saturation (helpful when false-normal ferritin is suspected) is a useful test in the diagnostic approach 3, 5
Serum iron and total iron-binding capacity are also recommended for iron studies 1

If iron deficiency is confirmed, first-line treatment is oral iron supplementation, with a standard dose of 65 mg elemental iron, and monitoring response is crucial, with a good response (Hb rise ≥10 g/L within 2 weeks) confirming iron deficiency 6
Investigating the underlying cause of iron deficiency, such as gastrointestinal blood loss, is essential, especially in men and post-menopausal women 4, 5
Screening for coeliac disease is recommended, especially if GI symptoms are present 2
For non-responders or those who cannot tolerate oral iron, considering intravenous iron therapy and reassessing diagnosis is necessary 6

Even mild anemia should be investigated as it may indicate serious underlying pathology 1, 2
Inflammatory conditions can mask iron deficiency by elevating ferritin, making it essential to consider dual pathology and not rely solely on hemoglobin and MCHC 1, 2
Vitamin B12 or folate deficiency should be considered as a potential cause of mild anemia 7