Normocytic anemia with a low reticulocyte count may be due to:

• A. Acute blood loss
• B. Chronic blood loss
• C. Unstable hemoglobin
• D. Iron deficiency

Answer: (A)

Reticulocyte count shows how well the bone marrow is responding to anemia. When red cell loss is acute, the marrow hasn’t yet had time to ramp up production, so the anemia is typically normocytic and the reticulocyte count remains low. Over the next few days, reticulocytes rise as the marrow compensates. In chronic blood loss, iron stores become depleted, leading to iron-deficiency changes (usually microcytosis) and a low retic due to restricted production. Unstable hemoglobin causes hemolysis, which drives a higher reticulocyte response as the marrow tries to replace destroyed cells. Iron deficiency anemia is typically microcytic with a low reticulocyte count. Therefore, the presentation most consistent with a normocytic anemia and a low reticulocyte count is acute blood loss in the early phase before marrow compensation.