Pathology - USMLE Step 1 - Exam - Qbank 5
A 75-year-old woman has increasing shortness of breath on exertion. Findings on physical examination are unremarkable. X-rays of the chest show no abnormalities of the heart or lungs. Pertinent laboratory findings include Hematocrit 28%, Hemoglobin 9 g/dL, Mean corpuscular volume 70 micrometer3.
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