More info needed,,: Your ft4 is low and you're on thyroxine, so that's an indication that your thyroid was apparently hypo functioning, at least without the thyroxine. The ft3 is the more active form but doesn't last long so it must be replaced which is naturally done by conversion from ft4. The lack of protein also plays in here as it binds thyroid hormone and more tests like renal, etc. Are needed to explain this.
Answered 3/11/2014
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