Question 1

how/does thyroid hormone production normally fluctuate along with female hormone cycle? are you more likely to have hi/lower t4/t3 at certain times?

Accepted Answer

There is: no "DIRECT" connection between thyroid gland output and t-4/t3 ratios and "female hormones" except that the BINDING of the hormone itself is altered by female hormone levels...This does not generally effect the end point of Thyroid Hormone effects (on growth, muscles and other tissues) 
Hope this helps!
Perhaps a more specific question can generate a better answer!
Dr Z

Question 2

is thyroid hormone the same as thyroxine?

Accepted Answer

Thyroxine is a type: The thyroid gland secretes two types of hormones: thyroxine (t4) and triiodothyronine (t3), but it produces T4 at much higher levels than t3. When treating thyroid hormone deficiency, your physician may prescribe levothyroxine (which is oral tablet of t4), liothyronine (oral formulation of t3), or combinations of such, or even dessicated (dried) pig thyroid as replacement therapy.

Question 3

so the internist said it wasn't necessary for my mom to increase her synthroid (thyroxine) dosage of 25 mcg because she has active thyroid hormone (t3) of 2.9.  do you agree?

Accepted Answer

???: Usually we use TSH to titrate the synthroid (thyroxine) dose. There may be some confusion. Better double check with her internist.

Good luck, your mother will be proud of you.

Question 4

i would like to know would the thyroid hormone levels be high or low after delivery in a woman?

Accepted Answer

Either way: There is a very common condition called "post partum thyroiditis".  It can cause fluctuations in your thyroid function leading to both high and low hormone levels. Sometimes it requires medication, but sometimes it levels out on its own. You may need to consult with an endocrinologist.

Question 5

can low thyroid hormone levels cause menopause?

Accepted Answer

Not really: But hormones all do an intricate dance with each other and so thyroid dysfunction can definitely alter female hormone function and cause many symptoms which mimic menopause. Get your levels checked!

Question 6

can low thyroid hormone symptoms like hair-loss be reversed?

Accepted Answer

Allopecia: If scalp hair loss called allopecia is due to hypothyroidism one can reverse it by normalizing thyroid function. Most of the time  hypothyroidism is due to an autoimmune disorder called hashimotos disease. Allopcia is an accompanying autoimmune disorder and may not be due to low thyroid hormones. It's an association -- not causation.

Question 7

can low thyroid hormone symptoms such as hair loss be reversed?

Accepted Answer

Possibly/depends,,,,: This may be reversed depending on how severe and long-standing the thyroid issue is and how good a person's circulation is.  Strict adherence to therapy would also help.

Question 8

what does it mean when my tsh levels are high, but my t3, t4, and other thyroid hormones are normal? im a male in my mid 20s?

Accepted Answer

: All laboratory results need to be interpreted in the clinical context and the doctor who ordered the tests is usually in the best position to do that. Talk to the doctor who ordered the tests. Having said that, it would have helped had you provided the actual results.    
Wish you good health!

Question 9

are thyroid nodules always thyroid cancer? i have a thyroid nodule and my levels of some thyroid hormone are low. my doctor wants to do more tests, but i dont really understand what he said. do i have cancer, or could it be something else?

Accepted Answer

Over : Over 95% of thyroid nodules are benign. Therefore the risk of cancer is low, but can be increased in younger or older people, people with a family history of thyroid cancer, or people who have been exposed to radiation (x-rays do not count). Sometimes benign thyroid nodules can secrete extra thyroid hormone, more than your body needs. If your doctor is suspicious of this, they will order a nuclear study called a thyroid uptake and scan. If a nodule is over a centimeter, that is when we usually will perform a fine needle aspiration to get a sample of cells in the nodule. If nodules are under a centimeter and there is no evidence of over activity, we can simply monitor with serial ultrasounds.

Question 10

do i need thyroid hormone if i have low free t3, (liothyronine) normal tsh and high tpo antibodies?

Accepted Answer

Possibly.: The TSH is normal so it might be a variation of normal or euthyroid. It also might be a developing thyroid condition, but there would be symptoms, like fatigue.  The tpo antibodies might mean hashimoto's thyroiditis.  This is usually associated with  hypothyroidism.  It would be wise to see your doctor to follow up.

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Doctor answers about:

Low t4 thyroid hormone what does this mean

A member asked:

How/does thyroid hormone production normally fluctuate along with female hormone cycle? are you more likely to have hi/lower t4/t3 at certain times?

A member asked:

Is thyroid hormone the same as thyroxine?

A member asked:

So the internist said it wasn't necessary for my mom to increase her synthroid (thyroxine) dosage of 25 mcg because she has active thyroid hormone (t3) of 2.9. do you agree?

A member asked:

I would like to know would the thyroid hormone levels be high or low after delivery in a woman?

A member asked:

Can low thyroid hormone levels cause menopause?

A member asked:

Can low thyroid hormone symptoms like hair-loss be reversed?

A member asked:

Can low thyroid hormone symptoms such as hair loss be reversed?

A member asked:

What does it mean when my tsh levels are high, but my t3, t4, and other thyroid hormones are normal? im a male in my mid 20s?

A member asked:

Are thyroid nodules always thyroid cancer? i have a thyroid nodule and my levels of some thyroid hormone are low. my doctor wants to do more tests, but i dont really understand what he said. do i have cancer, or could it be something else?

A member asked:

Do i need thyroid hormone if i have low free t3, (liothyronine) normal tsh and high tpo antibodies?

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