CHAPTER 19

TSH 18 mU/ml. TSH 0.25 mU/ml. Hgb 13.8 g/dl. Hgb 11.0 g/dl. Answer: 1. Rationale: New-onset atrial fibrillation is a potential symptom of hyperthyroidism. A TSH level above 5 mU/ml is considered high. Option 2 is indicative of hypothyroidism. Options 3 and 4 are both normal hemoglobin levels. ................
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