<And conversely, when the TSH result is low, it means the feedback to the
pituitary indicates the level of thyroid is within normal limits, and
therefore, no need to stimulate extra production.>

I guess I need to add that if the TSH level gets too low (below the lower
end of the normal level), it may mean the thyroid is actually overactive.
None of it is quite that simple, of course, but remember when your client
is telling you that her thyroid test was "low" or "high", this TSH test
may be what she actually had done, and the report simplified to her by
her physician..

Jean
************
K. Jean Cotterman RNC, IBCLC
Dayton, Ohio USA

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