American Thyroid Association Quick-Reference GUIDELINES Apps
Issue link: https://eguideline.guidelinecentral.com/i/1545288
5 Fetus Placental passage and physiological effects on fetus Placental passage and destruction of fetal thyroid gland Maternal TPOAb and TgAb can also traverse the placenta but do not affect the fetus. Maternal TSH does not cross the placenta.