Treatment Approach for Mild Hypochromic Anemia Indicated by Low MCHC

Diagnostic Workup Before Treatment

A comprehensive anemia workup should include complete blood count with red cell indices, reticulocyte count, differential blood cell count, serum ferritin, transferrin saturation, and CRP concentration 2, 3
Serum ferritin is the most specific test for iron deficiency, with levels <30 μg/L indicating low iron stores in the absence of inflammation 1, 4
Transferrin saturation <20% is a more sensitive indicator of iron deficiency than hemoglobin concentration alone 1, 4
A low MCV with RDW >14.0% suggests iron deficiency anemia, while a low MCV with RDW ≤14.0% suggests thalassemia minor 1

Oral iron supplementation with ferrous sulfate 200 mg three times daily is recommended for at least three months after anemia correction to replenish iron stores, according to the American College of Physicians 1, 4
Adding ascorbic acid can enhance iron absorption 1

Repeat CBC after 4-8 weeks of treatment to assess response 4
A good response is defined as a hemoglobin rise ≥10 g/L within a 2-week timeframe 1
Monitor hemoglobin concentration and red cell indices at three-monthly intervals for one year and then after a further year 1

In adult men and post-menopausal women, gastrointestinal evaluation is mandatory as GI blood loss is the most common cause 4
Upper endoscopy and colonoscopy should be performed to exclude GI malignancy 4
Consider small bowel biopsy during endoscopy to rule out celiac disease 4

Serum ferritin can be falsely elevated in inflammatory states, making diagnosis challenging 4
Overlooking combined deficiencies, such as iron deficiency coexisting with B12 or folate deficiency 1, 4
Failing to distinguish between iron deficiency anemia and anemia of chronic disease, which often overlap and require different management approaches 2, 3