What is the differential diagnosis and next diagnostic steps for a patient with mild normocytic‑to‑slightly microcytic anemia (Hb 12.1 g/dL, hematocrit 36.5 %, RBC 4.08 million/µL) with elevated red‑cell distribution width and a borderline low white‑blood‑cell count?

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Last updated: February 13, 2026 • View editorial policy

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