Related Questions

What is a TSH blood test and why would I need one?

TSH. Tsh, thyroid stimulating hormone (or thyrotropin), is made by the pituitary gland in the brain and signals the thyroid to make thyroid hormone. Tsh measurement is used as a screen to investigate thyroid function. Read more...

Can HRT affect a TSH blood test? If so how long should I stop it before test?

Yes. Estrogen replacement can affect TSH levels in way similar to oral contraceptives and pregnancy, by increasing the need for more thyroid hormone production. This can result in high TSH levels indicating that you have underlying primary hypothyroidism or if you are already on thyroid hormone, that you need more. There is no need to stop hrt, just adjust the dose of thyroid hormone. Read more...

Could a TSH blood test detect low testosterone levels?

No. Tsh or thyroid stimulating hormone is only good for assessing thyroid function (either good, overactive or underactive). With that said, during that same blood draw, your blood could potentially be checked for testosterone to determine how much you have. This is best done in the morning. Remember that we really should treat the person (and symptoms), not just a number. Make sure benefit > risk. Read more...

What is a TSH blood test for and does it mean I have cancer?

TSH. Tsh, thyroid stimulating hormone (or thyrotropin), is made by the pituitary gland in the brain and signals the thyroid to make thyroid hormone. Tsh measurement is used as a screen to investigate thyroid function. It is not used as a screen for cancer. Read more...

What is TSH on a blood test indicative of?

TSH. Stands for thyroid stimulating hormone. It is a sensitive test to detect the functioning level of the thyroid gland. The brain produces TSH and that stimulates the thyroid to produce it's hormone. If the level of the TSH is high, it means the thyroid gland is under active. If the TSH is low, that indicates the thyroid is overactive. Your doctor should discuss your results and what needs to be done. Read more...

How quickly can a blood test show changes in tsh?

Depends on med. It depends on which type of medication, those containing T3 (liothyronine) will change the TSH quite rapidly whilet4 will take longer. Either way we usually wait at least a month to retest so that the result is stabilized to the current dose. Tsh changes in those not on medication will depend on the medical condition, if any, that is present. Read more...

I'm 54, female. My blood test shows TSH 0.3. Do I need to do anything about it?

Depends. Why was it done in the first place? Depending on the lab, it may be normal or low. If low, it needs to be repeated, along with other thyroid tests such as free t4. If the thyroid is enlarged, this TSH is consistent with early hashimoto or graves disease, but if it is normal in size, these diseases are very unlikely. Read more...