Question 1

normal range t3/t4 but extremely low tsh(high sensitivity). slightly low before pregnancy and now extremely low 11 weeks. endocrine dr not concerned?

Accepted Answer

Low TSH: agree not to worry, your hormone levels are fine and the TSH being slightly is because you are pregnant, just like other things that change with pregnancy.
Don't worry.

Question 2

what does low tsh mean?

Accepted Answer

ThyroidStimulatingHo: Thyroid stimulating hormone.
It is secreted by pituitary gland to make your thyroid gland produce thyroid hormone.

Question 3

what does it mean if i have low tsh and low freet4? both .6

Accepted Answer

It depends: Are you taking thyroid hormone? If yes, it changes how the tests are interpreted.  If you are not on thyroid medication, a low free T4 and low TSH can indicate a pituitary disorder.

Question 4

what does a low tsh level mean?

Accepted Answer

Need to look at T3 (liothyronine): And free t4. Low tsh, depending on the sensitivity of the assay, indicates thyroid hyper-function. However, the suspected hyperthyroidism needs to be confirmed with high levels of T3 (liothyronine) and free t4. All lab tests need to be evaluated in the clinical context and it would be prudent to take up the issue with your doctor.

Question 5

could rhodiola cause low tsh levels?

Accepted Answer

Very unlikely: There is no known effect of rhodiola on the hypothalamus, pituitary or thyroid gland. Low TSH is almost always associated with hyperthyroidism or a pituitary problem. See an endocrinologist for evaluation.

Question 6

can you tell me is 23.69 a high or low tsh level?

Accepted Answer

High: The normal range for a TSH usually is up to 4.5 for most labs. This is a higher than normal number.

Question 7

what can be the cause of low testostorone and low tsh count?

Accepted Answer

Central: If this is hypothyroidism, low TSH and low testosterone together may have a hypothalamic/hypopituitary etiology. Please discuss this with your physician. You may need a work-up for other pituitary hormone deficiencies.

Question 8

due to thyca can you have low tsh and high tg? or if tg increases does the tsh?

Accepted Answer

Low TSH unlikely: Thyroid cancer usually does not cause a low TSH (unless you are taking thyroid hormone).  Most thyroid cancers do not function as well as normal thyroid tissue.  Elevated thyroglobulin is a nonspecific finding, seen in most disorders of the thyroid.  It can serve as a tumor marker for recurrent thyroid cancer as long as the thyroid has been completely removed.  High tg has nothing to do with tsh.

Question 9

what does it mean when you have a low tsh but you also have a low t4?

Accepted Answer

Thyroid labs: Hi. See an endocrinologist. Make sure it's a free T4 (not a TOTAL T4). If you have low TSH and a low free T4, that's compatible with pituitary disease causing hypothyroidism (so called "secondary hypothyroidism"). IF you have that (not saying you do), you need to be checked for pituitary problems and other pituitary deficiencies (adrenal, most promptly); If u have secondary hypothy, CHECK ADRENALS

Question 10

stress can increase tsh, but how high cortisol causes low tsh where as stress causes high cortisol production.?

Accepted Answer

Cortisol: This is a very complex system. In very basic terms cortisol is produced in response to stress and feeds back inhibiting production of itself (inhibiting crh and acth). Cortisol also inhibits TSH production (as well as growth hormone, estrogen, testosterone and lh production). Thus limiting the response to stress. It is though in chronic stress this feedback mechanism breaks down.

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Doctor answers about:

Extremely low tsh

A member asked:

Normal range t3/t4 but extremely low tsh(high sensitivity). slightly low before pregnancy and now extremely low 11 weeks. endocrine dr not concerned?

A member asked:

What does low tsh mean?

A member asked:

What does it mean if i have low tsh and low freet4? both .6

A member asked:

What does a low tsh level mean?

A member asked:

Could rhodiola cause low tsh levels?

A member asked:

Can you tell me is 23.69 a high or low tsh level?

A member asked:

What can be the cause of low testostorone and low tsh count?

A member asked:

Due to thyca can you have low tsh and high tg? or if tg increases does the tsh?

A member asked:

What does it mean when you have a low tsh but you also have a low t4?

A member asked:

Stress can increase tsh, but how high cortisol causes low tsh where as stress causes high cortisol production.?

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