I dont remember your past post, so I can only provide basic thyroid info.
You can only compare thyroid labs that are from the same lab, with blood drawn the same time, and the same time frame from your last dose.
Thyroid med should be absorbed increasing the two measured hormones which in turn should decrease the TSH.
You cant take other medications or vitmins/minerals within 4 hours of thyroid meds, or they will absorb the med, and you gain nothing.
Food should be the same time after med too.
Anyone on thyroid meds need a routine to stick to, otherwise levels will change.
If your levels are not going up with med, its because:
1) something from the above
2) your going hypo faster than you are increasing med dose
3) you have a rare condition called thyroid hormone resistance
4) your blood is for some reason, not absorbing this thyroid med
The free t3 and free t4 shows how much hormone is available for cell usage in the blood stream. We do not have a test showing what your cells are using yet. I dream of that day. The old "uptake" test tried to do this, but its not accurate.
Post Edited (astroman) : 6/12/2016 6:22:01 PM (GMT-6)