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Doctor insights on: What Are Tsh Levels For Hypothyroidism

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What are normal thyroid levels!?

What are normal thyroid levels!?

Depends on lab: Hi. Normal ranges vary somewhat from lab to lab, but as a close approximation, TSH normal range is about 0.5 to 4.5 and free T4 normal range is about 0.8 to 1.8. If you get a copy of your lab results from your doctor, the normal ranges will be stated on the lab print out. Good luck! ...Read more

Dr. Quang Nguyen
946 doctors shared insights

Thyroid Stimulating Hormone (Definition)

A TSH test measures the amount of thyroid stimulating hormone (TSH) in your blood. TSH is produced by the pituitary gland and tells the thyroid gland to make and release the hormones thyroxine ...Read more


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What are normal TSH levels?

What are normal TSH levels?

It's controversial: There is broad consensus that a TSH between 0.3-2.5 is normal (assuming no pituitary problem exists), and broad consensus that TSH levels above 10 are abnormal and should be treated. A middle-of-the-road approach might be to say that levels between 5-10 are abnormal, and treatment is likely to be beneficial, and that values between 2.5-5 may be abnormal, and that treatment may be beneficial. ...Read more

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What are normal levels of thyroid antibodies?

What are normal levels of thyroid antibodies?

Thyroid antibodies: These usually are performed by commercial labs. They give the normal ranges - usually less than 20 units. ...Read more

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What are efffects and results of cytomel (liothyronine) for hypothyroid?

What are efffects and results of cytomel (liothyronine) for hypothyroid?

Short-acting T3 (liothyronine): Cytomel (liothyronine) is the trade name for tri-iodothyronine, (t3). It is considered the active form of thyroid hormone, although all cells can convert T4 (the predominant product of the thyroid gland) into t3. Can be used to replace thyroid hormone, but it is short-lived. This means it must be taken multple times a day, and gives levels which are constantly going up and down (not ideal, hard to adjust). ...Read more

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How are high levels of thyroid peroxidase antibody treated (125)tsh (317)ft4(74) is armour thyroid safe im ttc?

They aren't: That study indicates the presence of autoimmune thyroid disease. You treat if tests show the presence of low thyroid function. ...Read more

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If your tsh levels are 5.25uIU/mL does this mean you have hypothyroidism?

If your tsh levels are 5.25uIU/mL does this mean you have hypothyroidism?

Likely: 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. Having said that, Most laboratories and endocrinologists use 5.0 as the limit, some use even a lower level to diagnose hypothyroidism. It would be prudent to follow your doctor's advice about medication. ...Read more

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What are normal testosterone levels?

What are normal testosterone levels?

Testosterone: Don't worry about testosterone levels unless there are problems you are having with erection, ejaculation, weight gain, etc. If there is something that you think is not quite right see your doctor. ...Read more

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How effective are thyromine for your low functioning thyroid?

How effective are thyromine for your low functioning thyroid?

Perfect: Hi. Thyroid hormone replacement is perfect when the dose of your thyroid medicine is correct. Very, very effective, easy, and relatively inexpensive. ...Read more

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I have hypocretin deficient narcolepsy which reduces TSH levels along with autoimmune hypothyroidism. Is the TSH test reliable to gauge my thyroid?

I have hypocretin deficient narcolepsy which reduces TSH levels along with autoimmune hypothyroidism. Is the TSH test reliable to gauge my thyroid?

Not always: TSH is not always a reliable test, because it relies on what the pituitary thinks, but different tissues may have different sensitivity to thyroid hormone. In addition, some people make too much reverse T3 (liothyronine), (liothyronine) which can block the action of T3 (liothyronine). Google "stop the thyroid madness" ...Read more

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High dheas, other hormones normal. Not pcos. What can be other reasons for high dheas? What medicine should I take? Metformin increased dheas levels

High dheas, other hormones normal. Not pcos. What can be other reasons for high dheas? What medicine should I take? Metformin increased dheas levels

How high?: Chronic stress has the potential to increase the dheas although it doesn't do this in everyone. Rarely an adrenal or ovarian tumor can raise the level but almost always raises testosterone also - which you report is normal. Dheas can have weak "male hormone" effect, causing mainly increased unwanted hair growth. Typically one counters this oral contraceptives and, sometimes, spironolactone. ...Read more

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My TPO and TSH levels are very high, but T3 (liothyronine) t4 &tsh are in range. I have a history of graves disease. Why are my antibodies high but other levels ok?

My TPO and TSH levels are very high, but T3 (liothyronine) t4 &tsh are in range. I have a history of graves disease. Why are my antibodies high but other levels ok?

Endocrinologist: You state that your tsh is very high and also state that it's normal in the same sentence. Your graves disease must have been treated with either RAI or medications and this usually leads to an underactive thyroid causing a high TSH which would mean that a higher dose of thyroid replacement is needed. Elevated antibodies could indicate intervening Hashimoto's thyroiditis. See an endocrinologist. ...Read more

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What are the normal TSH levels for a teenager?

What are the normal TSH levels for a teenager?

TSH: It depends on the assay. Generally 0.5-5.0. ...Read more

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What are factors that determine someone with hypothyroidism must be on synthroid (thyroxine) forever?i have it(just high TSH)other thyroid hormones're normal

What are factors that determine someone with hypothyroidism must be on synthroid (thyroxine) forever?i have it(just high TSH)other thyroid hormones're normal

Failing thyroid: Most likely you have Hashimotos thyroiditis, which is gradually "eating away" at your thyroid. Your doctor could check TPO antibodies. Your gland may not be totally dead now, but it likely will be eventually, but total hypothyroidism and a dead gland could be in 3 months or 10 years. Probably best to take your synthroid (thyroxine) to avoid the symptoms of hypothyroidism, but talk to your doc. ...Read more

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What can cause high TSH level after several years of Synthroid (thyroxine) for post ablative (graves) hypothroidism?

What can cause high TSH level after several years of Synthroid (thyroxine) for post ablative  (graves) hypothroidism?

Usually low Thyroid : Post ablative hypothyroidism is a condition where the thyroid gland is not functioning well and thus the patient needs more thyroid hormone. A "high tsh" actually mean there is not enough thyroid in the blood, thus an increase in dosage of the synthroid (thyroxine) is needed. Go see your family doctor and he/she will make adjustments and recheck the TSH level. This is very sensitive to thyroid in the body. ...Read more

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Can Lamotrigine (Lamictal) affect TSH levels? Also, what do low TSH mean (if T3 (liothyronine) and T4 are normal)?

Can Lamotrigine (Lamictal) affect TSH levels?

Also, what do low TSH mean (if T3 (liothyronine) and T4 are normal)?

Not alot: Thyroid interaction is not common with Lamictal, however as with all medications for each individual that can be a possibility. As to your low TSH that is usually a resonse to elevated T3, (liothyronine) T4. Remember that there can be variations in your thyroid measurements from one time to another. How do you feel. Do you have thyoid symptoms: cold, tired, fatigued, skin or nail changes? ...Read more

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What are symptoms of elevated cortisol and prolactin levels? I have both.

What are symptoms of elevated cortisol and prolactin levels?
I have both.

Increased prolactin: If significant, causea milk production. A prolactinoma can create headaches and vision canges if large enough. Elevated cortisol, depending on when it's checked can be due to stress or a couple of other reasons. It causes, in excess, central weight gain, elevated glucose, skin changes and a few other things. When and where did u get the labs? Under what circumstances? ...Read more

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TSH=0.04(0.4-4.5mIU/L)FreeT4=1.5(0.8-1.8ng/dL)FreeT3=2.5(2.3-4.2pg/mL). Have Hashimotos disease, on 112mcg Synthroid. why is tsh so low FT3/FT4 normal?

Any symptoms?: 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. Having said that, just one parameter, in this case TSH, slightly out of whack is not a cause for alarm. You may watch and wait. If your clinical situation changes it may warrant repeating the tests. Wish you good health! ...Read more

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With low TSH 0.02 but all normal thyroid and pituitary gland tests what could,be causing the suppressed tsh? Confused please help....

With low TSH 0.02 but all normal thyroid and pituitary gland tests what could,be causing the suppressed tsh? Confused please help....

Depends: Hi. How long has your suppressed TSH been present? If more than a couple months, and your free T4 and T3 (liothyronine) are normal, it's most likely an autonomous hyper-functioning ("hot") nodule (or multiple hot nodules). ...Read more

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What are normal levels for your liver tests?

What are normal levels for your liver tests?

It varies.: Every lab has different normal values, depending on a lot of factors around how they do the tests. Every lab result you get will have a normal range listed right after the result. ...Read more

Dr. Su Fairchild
1,257 doctors shared insights

Hypothyroidism (Definition)

A condition in which the thyroid gland can't make enough thyroid hormone to keep ...Read more