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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Should I Be Worried About TSH Value Of 0.20?

I just recently had a lab test for my doctor primarily for cholesterol but once a year it is a bit more extentisve. I access the results online and see that my TSH is 0.20 when the range is 0.40-4.5. The doctor never mentioned this. Is this somethung I should follow up on?
Wed, 16 Sep 2015
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General & Family Physician,  's  Response
Hello dear,

Thank you for your question and welcome to Healthcare Magic. I understand you concern.

Your blood report of your TSH level in lower than normal, which indicates that you might suffer from hyperthyroidism. At first you might think that this is a paradox, but let me explain briefly. TSH is a hormone produced from pituitary gland, and it is responsible for stimulation production of T3 and T4 hormones from thyroid gland. High T3(triiodothyronine) and T4(thyroxine) hormone level will lead to a decrease TSH level, due to their negative feedback response.
I would recommend you undertake T3, T4 and Thyroid Peroxidase Antibodies (TPO) Level. After these reports we could decide if you need treatment for the condition.

Hope I helped with my answer. For further concerns or follow up questions feel free to ask again.

Best Regards,
Dr. Ina
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Should I Be Worried About TSH Value Of 0.20?

Hello dear, Thank you for your question and welcome to Healthcare Magic. I understand you concern. Your blood report of your TSH level in lower than normal, which indicates that you might suffer from hyperthyroidism. At first you might think that this is a paradox, but let me explain briefly. TSH is a hormone produced from pituitary gland, and it is responsible for stimulation production of T3 and T4 hormones from thyroid gland. High T3(triiodothyronine) and T4(thyroxine) hormone level will lead to a decrease TSH level, due to their negative feedback response. I would recommend you undertake T3, T4 and Thyroid Peroxidase Antibodies (TPO) Level. After these reports we could decide if you need treatment for the condition. Hope I helped with my answer. For further concerns or follow up questions feel free to ask again. Best Regards, Dr. Ina