A 55-year-old male is admitted for a diagnostic workup of progressively worsening fatigue and dyspnea on exertion. Labs show hemoglobin 7.8 g/dL, MCV 72 fL, ferritin 8 ng/mL, and transferrin saturation 10%. He has a history of chronic gastritis. What is the most appropriate initial treatment?
✓ Correct Answer: Option D
This patient has iron deficiency anemia. Oral ferrous sulfate is the first-line treatment for iron deficiency anemia, aiming to replenish iron stores. Intravenous iron is reserved for malabsorption, intolerance, or severe, ongoing blood loss.