Question
An 18-year-old man is recently diagnosed with beta-thalassemia minor. His hemoglobin is 10.5 g/dL, and he feels well. Which of the following findings is characteristic of this condition?
| A. | an increased amount of fetal hemoglobin (HbF) or hemoglobin A2 (HbA2) |
| B. |
increased osmotic fragility of the red cells |
| C. |
absent bone marrow iron |
| D. |
increased macroglobulins in the serum |
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