131I Uptake
131I uptake is not part of a regular thyroid profile. True hyperfunctioning of the gland (Graveís) would require more iodide to synthesize more hormone. The 131I uptake _.
131I radioactive scan to identify solitary nodules as ìhotî (active) or ìcoldî (inactive). In thyroiditis, when 1) excess hormone is released from a damaged gland or 2) excessive amounts of thyroid is taken,
131I _ :1) because of an inflamed gland
2) owing to atrophy of the gland due to suppression of TSH.