Re: Lab tests and hormones????????
No, there isn't a different range, I don't believe. The problem is, the hormones increase hormone binding proteins - including the proteins that bind T3 and T4. Total T3 and total T4 are measures of the bound (inactive) hormones, which function as a storage reservoir. FREE T3 and T4 measures the active form, the unbound form.
So - anyone on birth control pills or other forms of female hormones may have artificially raised total thyroid hormones, but measuring the free form whould give you an accurate picture.
TSH responds to the unbound, free hormones, so female hormones should not affect that.
Last edited by ellie342; 04-16-2006 at 08:16 PM.