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Doctor insights on: How Long Does Tsh Blood Test Results Take

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I'm on levothyroxine. Can you tell me about T3 (liothyronine) replacement for many persistent hypothyroid symptoms even with normal TSH blood test results?

I'm on levothyroxine. Can you tell me about T3 (liothyronine) replacement for many persistent hypothyroid symptoms even with normal TSH blood test results?

How normal is normal: 1st things 1st. How normal is your tsh? Just below upper limit of normal? Or below 2? There are some studies suggesting that some people respond better to desiccated porcine thyroid rather than levothyroxine. However, you didn't specify your hypothyroid symptoms, many of which overlap w/taking propanolol, wellbutrin (bupropion) ; vyvanse. Talk to your doc about switching or increasing dose w/close monitoring. ...Read more

Dr. Quang Nguyen
893 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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Nurse called for blood test results (CBC,tsh,b12) but I wasn't home.she told my mom it could wait for my appointment in 2 weeks.That means not urgent?

Nurse called for blood test results (CBC,tsh,b12) but I wasn't home.she told my mom it could wait for my appointment in 2 weeks.That means not urgent?

Sounds like it: In the grand scheme of things, 2 weeks means not urgent. Of course, if one has any worrisome concerns or questions, one should contact her doctor sooner. ...Read more

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I have blood test results that show low calcium levels, low PTH levels, and confirmed hypothyroidism due to high TSH. what does this mean?

I have blood test results that show low calcium levels, low PTH levels, and confirmed hypothyroidism due to high TSH. what does this mean?

Calcium PTH, Thyroid: Confirmed hypothyroidism s a clear message that the TSH is working hard to increase thyroid hormone but without success. Treatment will have to be with thyroid hormone taken by mouth. Unlikely, but the surgeon might want to remove your thyroid gland since it is not working properly. ...Read more

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How long does it take for a new level of Synthroid (thyroxine) to take effect so that I can get a repeat blood test for my TSH which was 0.01?

How long does it take for a new level of Synthroid (thyroxine) to take effect so that I can get a repeat blood test for my TSH which was 0.01?

At least a month: If your TSH was 0.01 you were definitely taking too much thyroid hormone so I assume your doctor reduced your dose. I usually wait 1-2 months before repeating the free T4 and TSH on the new dose by which time the tests should have stabilized ...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