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A member asked:
Can you have tsh [1.09] and t free[o.66] which are within normal parameters and still have low thyroid function?
2 doctors weighed in across 2 answers
Thyroid: Not usually. Why do you ask? What are your problems? Have you considered that you may also be vitamin d deficient?
Answered 8/15/2013
4.9k views
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No: If your TSH and free T4 levels are normal, you do not have low thyroid function. However, a free T4 of 0.66 would be low in most labs. Low free T4 with a normal TSH could indicate a pituitary problem.
Answered 1/15/2015
4.9k views
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