Anemias & cytopenias Practice Test

A 68-year-old man with a long history of poorly controlled rheumatoid arthritis presents with fatigue. He is not taking any medications known to cause bone marrow suppression. Laboratory studies show: Hemoglobin 9.8 g/dL, MCV 85 fL, Serum iron 35 µg/dL (low), Total iron-binding capacity (TIBC) 200 µg/dL (low), Ferritin 450 ng/mL (high).

A 28-year-old woman presents to her primary care physician with a 3-month history of progressive fatigue, shortness of breath on exertion, and a craving for ice chips. She reports heavy menstrual periods lasting 7-8 days. Physical examination reveals pale conjunctiva and koilonychia. Laboratory studies show: Hemoglobin 8.9 g/dL, Hematocrit 27%, MCV 72 fL, Platelet count 450,000/µL, WBC count 7,500/µL. The peripheral smear shows microcytic, hypochromic red blood cells.