Help interpreting my T4 ranges

Those are in the normal range, and most people won't have symptoms with those levels. Are you feeling okay? Your levels should be rechecked every three months until you have been stable within range for at least a year.

---

Thyroid forum moderator

Ulcerative colitis since 2001, starting 8th year of remission with Remicade.
Inflammatory osteoarthritis; osteonecrosis from steroids
Grave's disease treated with radioactive iodine and now on Levothyroxine.
Type II diabetes induced by steroids.

"It's always something." ~ Rosanne Rosannadanna

Do you ever get your T3 tested?

FT3 is generally tested with hyper, and your TSH is a little low, so I would recommend testing for FT3 next time you go for blood tests !

Basically, T4 is the precursor to T3 and is produced in larger amounts by your body. When your body senses the circulating T3 is low, it starts converting T4 to T3, which is what actually is active in your body. It's possible to have a normal T4 but low T3 if your body doesn't make that conversion efficiently. It's somewhat like a car with plenty of gas, but no spark plugs to fire it. This is most likely if you're hyperthyroid.

If you haven't checked Medline, here is their page:

www.nlm.nih.gov/medlineplus/ency/article/003687.htm

---

Thyroid forum moderator

Ulcerative colitis; 8th year of remission with Remicade.
Inflammatory osteoarthritis; osteonecrosis from steroids
Grave's disease post-RAI and now on Levothyroxine.
Type II diabetes induced by steroids.

Hi,
Some people develop same symptoms for both hyper and hypo, it would be clever to test for thyroid antibodies to see if you have an autoimmune disease that is causing your TSH to be a little bit low, those are TPOab, TGab and TSIab.