Test results are based on lab ranges, and different labs use different ranges. So you need to look at your results in the context of what your lab range limits are.
Your Free T4 is low. How low depends on your lab ranges. The report probably shows that your T4 is low, but still within lab limits.
Your Free T4 needs to be about two thirds of the way up between the low limit and the high limit.
It means you need thyroid hormones. Now the doctor needs to figure out WHY you need thyroid hormones.
The health pages (the button is up on the right) may help you understand things a little better, but feel free to ask questions. You can find links there that explain test results.
Do you know of any good websites that I can research about test results and what they mean?
Hi, I'm not brilliant with the test result reference ranges over there in the USA, but I think it looks like you have an underactive thyroid, your thyroid isn't working as well, so they give you the medication to replace the thyroxine that your body isn't making enough of. Hope this helps. But wait for some replies off more experienced people to be sure.