Thyroid Disease in Pregnancy

Posted by e-Medical PPT Friday, May 28, 2010

Human chorionic gonadotropin (hCG) and estrogen increases thyroid hormone levels in the blood. Made by the placenta, hCG is similar to TSH and mildly stimulates the thyroid to produce more thyroid hormone. Increased estrogen increases the productiion of thyroid-binding globulin(TBG). These normal hormonal changes can sometimes make thyroid function tests during pregnancy difficult to interpret.
Thyroid hormone is critical to normal development of the baby’s brain and nervous system. During the first trimester, the fetus depends on the mother’s supply of thyroid hormone, which it gets through the placenta. At 10 to 12 weeks, the baby’s thyroid begins to function on its own. The baby gets its supply of iodine, which the thyroid gland uses to make thyroid hormone, through the mother’s diet.




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1 Response to Thyroid Disease in Pregnancy

  1. Anonymous Says:
  2. Is it safe to take medication for hypo or hyperthyroidism during pregnancy

     

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