Confused with your TSH numbers and other bloodwork results? Trying to figure out what T4 is? Where you are in the range limits, and why?
This link is old, and some of the test values have changed. I do not agree with all the data provided, but it gives very clear and easy to understand discriptions of all the basic diagnostic blood tests associated with thyroid disease.
It is useful for describing why various blood tests are run, and what the test values mean.
This is another good, basic link:
and one from the American Thyroid Association.