Discussions that mention thyroxine

Multiple Sclerosis board


Hi Kristine,
I assume those results were for Free T3 and T4. If so, the T# seems low. Here is the chart that I use when I get my levels from the lab. I hope it helps you.

Note the level of your Thyroid Stimulating Hormone (TSH). At most labs in the U.S., up until late 2002, the normal range is from around 0.5 to 5.5. That range changed to .3 to 3 as of early 2003.

If the TSH level is below normal, your doctor may determine that you are hyperthyroid (overactive thyroid.)
If the TSH level is above normal, your doctor may determine that you are hypothyroid (underactive thyroid.)

If your doctor ran a test called Total T4 or Total Thyroxine, normal range is approximately 4.5 to 12.5. If you had a low reading, and a high TSH, your doctor might consider that indicative of hypothyroidism.

If your doctor ran a test called Total T4 or Total Thyroxine, normal range is approximately 4.5 to 12.5. If you had a low reading, and a low TSH, your doctor might look into a pituitary problem.

If your doctor ran a test called Free T4, or Free Thyroxine, normal range is approximately 0.7 to 2.0. If your result was less than 0.7, your doctor might consider that indicative of hypothyroidism.

If your doctor ran a test called Total T3, normal range is approximately 80 to 220. If your result was less than 80, your doctor might consider that indicative of hypothyroidism.

If your doctor ran a test called Free T3, normal range is approximately 2.3 to 4.2. If your result was less than 2.3, your doctor might consider that indicative of hypothyroidism.

If your test results come back "normal" but you have many of the symptoms or risk factors for thyroid disease, make sure you ask for an antibodies test. Some doctors believe in treating thyroid symptoms in the presence of elevated antibodies and normal TSH levels.


Yes, I get the fluttering in my ear at times, also. Mine sounds kind of like a very rapid timpany drum beat. I notice it more when I am tired.

Hope you have a great night!
Julie