Know Where Your Doctor and Lab Stand in the TSH Reference Range Wars
Up until 2002, most doctors in the US belived that the normal range for thyroid TSH tests was .5 to around 5.0. Since that time, the experts are split...some believe the .5 to 5.0 range is still valid, others follow a tighter .3 to 3.0 range. This has profound implications on your health and treatment, and you must know about this issue in order to be well and stay well.
Here is the definitive article to read, so that you understand the issue!!

