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A member asked:
22 weeks pregnant. can 10 mcg of biotin 12 hours before thyroid tests slightly elevated tsh to 4.4? free t4 is 11 which looks normal?
A doctor has provided 1 answer
Depends: Some immunoassays, including those for TSH are affected by excess intake of Biotin. Discuss with your doctor if you the test needs to be repeated in a few months. Wish you good health and a healthy baby!
Answered 1/9/2021
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