Hormone Tests in Pregnants

In pregnants  TSH values are various. The TSH level decreases due to the hormone secreted in pregnancy (cryonic gonadotropic hormone). Therefore, the lower limit of TSH is accepted as 0.1 mIU/L in the first trimester and as 0.2-0.3 mIU / L in the second and third trimesters. TSH values above 2.5 mIU/L in the first trimester and above 3 mIU / L in the second and third trimesters are considered as "subclinical hypothyroidism" (hypotyroidism without clinical signs).


The importance of elevated antibody levels in pregnants

Even if thyroid hormones are normal in pregnancy, high levels of antibodies increase the risk of miscarriage. The association has been found between the unsuccessful results and anti-TPO elevation in applications such as IVF. The baby has a risk of hypothyroidism in the pregnancies with elevated TPO levels.

Although thyroid hormones are normal in the first months of pregnant women with positive antibodies, hypothyroidism may develop in the following months. For this reason, TSH should be tested every 4-6 weeks. TSH should also be tested after delivery in women with positive thyroid antibodies.