Guaranteed income supplement. Seniors may be eligible for the guaranteed income supplement (GIS), which is a monthly benefit paid to residents of Canada who receive a full or partial OAS pension. If a senior is single, his or her income should be below $14,352.
TSH (thyroid stimulating hormone) increases the activity of the Sodium-Iodine Symporter (NIS) that drives iodine into the thyroid and into the cells of the other organs. That is the reason that the TSH blood levels increase when patients are taking iodine â the TSH is needed to drive iodine into the cells.
Iodine deficiency can cause a goiter, yet still show a normal TSH and T4. A normal TSH can show in spite of non-conversion of T4 to T3. Adrenal issues causing thyroid symptoms can stop conversion of thyroxin (T4) to the active thyroid hormone, triiodothyronine or (T3). None of these is picked up by TSH levels alone.