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A member asked:
Young adult on birth control and my recent t4 level was 1.0 and my tsh level was 1.75. is this common?
2 doctors weighed in across 2 answers
Yes: Birth control can cause your T4 to be elevated but it is still considered normal.
Answered 1/15/2015
5.1k views
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Probably normal: The 1.0 is likely a "free t4" level rather than "total t4" level, and is normal. The TSH is also normal.
Answered 10/4/2016
5.1k views
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