NCC Pediatrics Residency at Walter Reed-Bethesda

Thyroid testing shows a free thyroxine value of 1.3 ng/dL (16.7 pmol/L) (normal, 0.9 to 1.8 ng/dL [11.6 to 23.2 pmol/L]) and a thyroid-stimulating hormone value of 2.4 mIU/L (normal, 0.5 to 5.0 mIU/L). Of the following, the MOST likely cause of this child’s thyroid enlargement is. A. adolescent goiter. B. chronic lymphocytic thyroiditis ................
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