What is the reference range for the T4? Reference ranges vary from lab to lab and have to come from your own report(s) for the best comparison. Also, was that Free T4 or Total T4? They aren't the same test and don't give the same information.
What other test result are you waiting for?
What, if any, symptoms do you have?
I'm sorry to answer your question with more questions, but once we know these answers, we can give you better information.