Just a quick question. Can anyone explain. Background: Had RAI treatment May 95, was hypothyroid in Aug 95 and began taking Synthroid. Finally got levels adjusted in Apr 96. All levels have been within normal range i.e. T-4, T-3, T-7 and TSH. Recently, my doctor did a test and my TSH level was 11.6 when the normal range is .40-4.2. I questioned my doctor and he said that we watch the T-4 level and it is normal 10.9, range is 5.0-12.0 and that the 11.6 number on TSH is ok. I am concerned about this as i read where an elevated TSH signals central nervous system insufficiency of throid hormone. Can anyone shed light on this?
Thanks so much.