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Doctor insights on: What Is Tsh 3rd Generation Blood Test

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Dr. Quang Nguyen
936 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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Tsh 3rd generation blood test level is 3.442. T3 (liothyronine) total is 87. T4 total is 8.7. Free T4 is 1.01. Is this normal or do I have a thyroid problem? I'm ttc

Tsh 3rd generation blood test level is 3.442. T3 (liothyronine) total is 87. T4 total is 8.7. Free T4 is 1.01. Is this normal or do I have a thyroid problem? I'm ttc

Normal: Your thyroid function tests are in the normal range. See this site for more details.
http://www. Endocrine. Niddk. Nih. Gov/pubs/thyroidtests/. ...Read more

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Rsults of my blood test indicate low LH and high TSH (3rd generation). What does this indicate?

Rsults of my blood test indicate low LH and high TSH (3rd generation). What does this indicate?

Hypothyroid: A high TSH is consistent with primary hypothyroidism. You should have a free T4 level done. Lh is unrelated to thyroid. A low level could be related to medications, such as an oral contraceptive or other estrogen usage (or testosterone in a male). If your periods are regular, it is likely a lab error. ...Read more

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My cmp blood test says TSH w/reflex to f4 is 4.44 miu/l (normal range is 0.4-4.5). Do I have hypothyroidism? I have sparse eyebrows on the outer third

My cmp blood test says TSH w/reflex to f4 is 4.44 miu/l (normal range is 0.4-4.5). Do I have hypothyroidism? I have sparse eyebrows on the outer third

Not likely.: Tsh in "normal" range so not technically hypothyroid. Some would argue that TSH should actually be lower.

I would repeat this in a few months. If normal again would stop worrying. If abnormal diagnosis is clear.

In any case eyebrow thinning is not likely due to this tsh. ...Read more

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I was pregnant fr 7 week (now had miscarriage) nd I took a blood test. TSH 3rd gen level is 26.28. what type of thyroid is that. Am taking thyrox-100 thyroxine sodium tablets IP as suggested by doctor.

I was pregnant fr 7 week (now had miscarriage) nd I took a blood test. TSH 3rd gen level is 26.28. what type of thyroid is that. Am taking thyrox-100 thyroxine sodium tablets IP as suggested by doctor.

Se below: 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, your TSH level suggests that an upward revision in your medication dose is warranted and you should discuss it with your doctor.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex.
Get HPV vaccine ...Read more

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Should I fast for a TSH blood test?

No: Fasting for TSH is not necessary and will not change results. ...Read more

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What is TSH on a blood test indicative of?

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

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How quickly can a blood test show changes in tsh?

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

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

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

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Is 0.45 low for TSH blood test? Have lots of symptoms.

Is 0.45 low for TSH blood test? Have lots of symptoms.

It depends: Upon the lab, but that value is generally in the lower end of normal, and wouldn't account for any symptoms you are experiencing. Check w/ your doctor, ...Read more

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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

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What does a blood test TSH reflx ft4 mean?

Thyroid testing: The TSH level will be checked, and if it is out of the reference range, the lab will then run a ft4 without requiring the physician to call you in to have blood drawn again. ...Read more

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Should I take my daily dose of levothroxine before my TSH blood test?

Should I take my daily dose of levothroxine before my TSH blood test?

Yes: Tsh takes along time to correct hence your morning dose of levothyroxine will not affect however it may affect your ft3. ...Read more

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My blood test result: tsh... H....5.59 (max normal range is 5), should I be worried? Many many tnx in advnc

My blood test result: tsh... H....5.59 (max normal range is 5), should I be worried? Many many tnx in advnc

More tests: Current test points to hypothyroidism. I recommend a free T4 and thyroid antibodies to complete the workup. It's possible that you will need thyroid hormone replacement but not until a final diagnosis is made. Please discuss this with your doctor. Good luck. ...Read more

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I got my blood test back. It says my ft3 is 6.22 ft4 is 1.36 and my TSH is 2.5528 what that mean please help!?

I got my blood test back. It says my ft3 is 6.22 ft4 is 1.36 and my TSH is 2.5528 what that mean please help!?

Normal: That thyroid panel looks normal. If you have symptoms of a thyroid disorder, more thyroid tests can be done, but generally these numbers look good. ...Read more

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I got my blood test back. It says my ft3 is 6.22 refrang 1.7-3.7 ft4 is 1.36 rang is 0.7 -1.48, my TSH is 2.5528 refrang 0.35-4.98?

Thyroid: Numbers alone aren't enough to work with. Do you have hypothyroidism or thyroiditis, or post thyroidectomy or none of above. Based on ft3 and ft4, I would expect your TSH to be lower. It depends on your clinical picture, lots of variables influence these #s, incl. Meds, other disorders, hormones, etc. Do you take thyroid meds? ...Read more

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I recetly got a blood test done, my FT3 is 4.6 FT4 is 13.41 however TSH is 8.66. How can I lower my TSH levels? Are these levels alarming or normal?

I recetly got a blood test done, my FT3 is 4.6 FT4 is 13.41 however TSH is 8.66. How can I lower my TSH levels? Are these levels alarming or normal?

Thyroidologist: This elevated level of tsh is indicative of an underactive thyroid and should be accompanied by abnormally low levels of ft3 and ft4. A thyroidologist or endocrinologist is best qualified to evaluate you and advise you about these values. Make sure that you inform him /her about any medications or supplements you may be taking and bring a record of your previous test results or
endocrine therapy ...Read more