2 doctors weighed in:

What are normal TSH and T4 levels in blood?

2 doctors weighed in
Dr. Gurmukh Singh
Pathology
1 doctor agrees

In brief: 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.

In brief: 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.
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