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A 29-year-old member asked:

What are normal tsh and t4 levels in blood?

1 doctor answer2 doctors weighed in
Dr. Gurmukh Singh
Pathology 50 years experience
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.
Last updated Dec 1, 2017

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