If Krista had been diagnosed with hypothyroidism what would

If Krista had been diagnosed with hypothyroidism, what would happen to her levels of TSH and thyroid hormone? A common treatment for Graves\' disease involves ingesting a dose of radioactive iodine, which slowly destroys the thyroid gland. Why are other tissues unaffected?

Solution

Hypothyroidism is underactive thyroid gland. Thyroid stimulating hormone is produced when the thyrotropin releasing hormone (TRH) is released by hypothalamus. TSH in turn makes to hormones triiodothyronine (T3) and thyroxine (T4).

During hypothyroidism the levels of T4 will be low and the level of TSH will be high as the since the levels of T4 has gone down the pitutary gland produces TSH in more amount so that the loss of T4 can be compensated but it causes various medical issue.