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Questions about test results

Hello, I am brand new to this fourm, I hope that someone can help me understand my test results My tsh is 75 and my T4 is 5.95 Is this something to worry alot about, I have been feeling pretty bad for about three months. My doctor sent me for an ultrasound and said that my thyroid is not functioning right. he put me on meds, Can anyone give me some advice about this. Thank You, I really do not know anything about all of this.
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649848 tn?1534633700
COMMUNITY LEADER
What medication are you on?  What dosage?  How long have you been on it?  Do you know if that T4 is "Free" or "Total"?  

As LazyMoose said, please post the reference ranges from your lab report, as these vary from lab to lab, so must come from your own report.  If you are in the US, and your doctor did not give you a copy, he is required, by law, to do so upon request.
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Avatar universal
Thank you for the information i will try and get more information from my doctor, I am still very confused about all of this, I will be sure to ask alot more questions when I go back for more lab work next week. Thank you again and I will post again when I know more.
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798555 tn?1292787551
I can answer this with almost the same comment for one other 'newbie":

In the future when posting labs, it is best (necessary) to also post the ranges used by the lab. This should be included in the lab copy that is provided for you. Not? then ask for it. The ranges actually vary according to the lab equipment used.

There are three thyroid hormones. The most important thyroid hormone to measure is T3. The most accurate test used to measure this is actually called "Free T3".  Another called 'total T3' is very outdated by a least 15 - 20 years. T3 hormone is the 'consumable' hormone that all cells use every second, after is it converted from the storage hormone T4 in your body.  Not everyone converts well from T4 to T3, why T3 is so important. And Free t3 is most healthy in the middle to upper third of the range. The lower it is the sicker you will be, guaranteed.

Think of it like your car. T4 is the fuel in the tank. T3 is the fuel at the engine. If your fuel line leaks, it doesn't matter that your tank is full, the engine will get less gas (T3).

TSH is not a hormone your cells use. Its really a signal hormone from the pituitary gland telling the thyroid what to do. This is not the best way to measure thyroid health, as it varies per person. But that said , you are far on what would be called the hypo side. So you should get 'Free T3' tested once that very high TSH gets lower from your med. MOST, not all people, feel best with TSH around .3 to 3., the most modern range used.

You should also ask for TPO and TGab antibody testing. Most hypothyroid people have the autoimmune antibody disease called Hashimoto. Its good to know if you have this.
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