Whats the healthy range for TSH

[NGT]

I am 28 years old female. I have a family history of Thyroid , my grand ma, mom as well as my sister has it. In the last year i gained more than 20 pounds and feel extemely fatigued and unable to lose weight with diet/little exercise
Doubting it might be Thyroid , i asked my doctor for a test , the result in the report said TSH was 4.280 while the healthy range was mentioned as 0.27 to 4.2
My doctor said its normal .
I need to know whats the healthy range for TSH . and is my result normal ?

[kitty9309]

I agree with the above.

Here is a quote from the aace.com website:

"In November 2002, AACE published revised guidelines that provided a new range for normal thyroid function. Until this time, doctors had relied on a normal TSH level ranging from 0.5 to 5.0 to diagnose and treat patients with a thyroid disorder who tested outside the boundaries of that range. AACE encouraged doctors to consider treatment for patients who test outside the boundaries of a narrower margin based on a target TSH level of 0.3 to 3.04. AACE believes the new range will result in improved accuracy of diagnosis for millions of Americans who suffer from a mild thyroid disorder, but have gone untreated."

[AR-10]

The healthy range for TSH is 0.8 to 1.8.
Anything above 3.0 can give you symptoms.

Your result is high.
Your experience is normal.
You are "sub-clinical" Hypo.