A member asked:

I have hipothroid. if t 4 level is 12.9 what should i do?i am 49 yrs& taking medicine thyroxine 100mcg since20 yrs.

A doctor has provided 1 answer
Dr. Stuart Hickerson answered

Specializes in Family Medicine

TSH: If your are on Thyroxine, you should have a TSH drawn. TSH or thyroid stimulating hormone is the signal from the brain which tells your thyroid to secrete thyroxine. When you are taking thyroxine the appropriate dose should normalize the TSH level.

Answered 10/11/2018

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