Your FT4 is still probably not high enough... most people would feel better with a level of at least 1.4 on range your lab uses. And your FT3 is very low. The ratio between the two is unbalanced enough to indicate either poor conversion or cellular resistance (meaning your cells aren't "receiving" the hormone for some reason). It could also mean that some of the T3 is converting to reverse T3. Reverse T3 is a more complicated subject and requires more testing to discover. Most MDs usually don't bother.
I don't pretend to know much about any of these conditions... and most doctors don't run enough tests to detect whatever condition is causing the FT3 to stay low. The best thyroid experts assume that most people have at least some degree of conversion problem.
That's part of the reason why a T4/T3 drug like Armour works best for more people than any of the T-4 only drugs.
Last edited by midwest1; 02-17-2005 at 06:16 AM.
Reason: for simplicity