I don't understand your statement that as of "As of February 2010, at most laboratories in the U.S., the official "normal" reference range for the Thyroid Stimulating Hormone (TSH) blood test runs from approximately .5 to 4.5/5.0."
As goolarra said, nearly 10 yrs ago, the AACE recommended that the range for TSH be changed to 0.3-3.0, and some labs and doctors are moving slowing toward that range, regardless of the lab report.
Do you have links that could/would support your statement? If so, we'd appreciate you posting them, to insure that we don't give members erroneous information.
About ten years ago, the American Academy of Clinical Endocrinologists recommended that reference range for TSH be changed from 0.5-5.0 to 0.3-3.0. Many labs and doctors have moved at a snail's pace making these changes, but good thyroid doctors use the 0.3-3.0 range regardless of what's printed on the lab report. The new range is also used by just about everyone on this forum.
If you re-read, rmeb's FT3, not her TSH, is 2.38. Rmeb doesn't provide her lab's range (ranges vary on FT3 and FT4 from lab to lab and have to be posted along with results), but FT3 range is usually in the vicinity of 2.3-4.2. So, you can see that her FT3 is indeed very low in the range. Many of us find that hypo symptoms are not relieved until FT3 is upper half to upper third of range.
Rmeb's doctor probably doesn't have to find himself a good shrink just yet...
As of February 2010, at most laboratories in the U.S., the official "normal" reference range for the Thyroid Stimulating Hormone (TSH) blood test runs from approximately .5 to 4.5/5.0.
These are the normal ranges... your 2.38 is within normal range as you can see.. your doctor is nuts
What are the ranges? Do you have all the TSH, Free T3, and Free T4 numbers?
What are your symptoms?
What are your symptoms?
Was 180 mg your starting dose, or did you work up to that gradually?
Do you have recent labs to post? Please post reference ranges as they vary lab to lab and have to come from your own lab report.