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A member asked:

What are normal tsh and t4 levels in blood?

A doctor has provided 1 answer

See below: Normal ranges vary from lab to lab and you should check the reference range for your lab. General ranges are given below: tsh: 0.4 - 4.0 miu/l t4: 4.5 – 12.5 for more info see the site below http://thyroid.About.Com/cs/newsinfo/l/bltest_values.Htm.

Dr Juchau agreed

Answered 12/1/2017

5.6k views

Thank

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TSH is .35 ( low ) but T4 free is 1.03 ( normal ) Should I get more blood work ?

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I had a TSH REFLEX TO FREE T4 blood test done, my result is 3.70 (0.40-4.50 mIU/L), is this normal? Thank you.

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I'm wondering what TSH rfx on abnormal to free t4. Tsh 0.674. On my blood tests means. I also had glucose level of 56.

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