[Free thyroid hormones in pregnancy]
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Abstract:
The following parameters were measured in 95 euthyroid subjects and in 55 healthy pregnant women: TT4, TT3, rT3, RT3-Uptake, TSH, FT4 and FT3. In addition, FT4-index, TT4/TBG, FT3-index, TT3/TBG and the balance of free hormone indices were calculated. The results of FT4 and FT3 measurement indicated an euthyroid status in late pregnancy. Though the FT4 and FT3 levels were significantly lower than those of the euthyroid subjects, they did not fall outside the normal range.