What should TSH levels be during pregnancy?

The Endocrine Society recommends that TSH levels be maintained between 0.2-<2.5 mU/L in the first trimester of pregnancy and between 0.3-3 mU/L in the remaining trimesters.

What is considered high TSH in pregnancy?

Currently, many centers use a reference range for TSH with an upper limit of 2.5 mU/l in the first trimester and 3.0 mU/l in the second or third trimester to diagnose subclinical and overt hypothyroidism.

Do TSH levels increase during pregnancy?

Two pregnancy-related hormones—human chorionic gonadotropin (hCG) and estrogen—cause increased thyroid hormone levels in the blood. Made by the placenta, hCG is similar to TSH and mildly stimulates the thyroid to produce more thyroid hor- mone.

Is a TSH level of 7 high?

According to Cappola, her research regarded mildly elevated TSH levels as those in the 4.5 to 7 mU/L range, while very elevated TSH levels were considered to be those greater than 20 mU/L.

What happens to TSH in pregnancy?

This study shows that higher TSH levels before pregnancy, even when they are borderline high, may be associated with a higher rate of miscarriage, pregnancy loss, cesarean section and large infants.

Can thyroid affect baby growth?

The thyroid makes hormones that help your body work. If it makes too little or too much of these hormones, you may have problems during pregnancy. Untreated thyroid conditions during pregnancy are linked to serious problems, including premature birth, miscarriage and stillbirth.

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How do I get my TSH levels down?

Treatment

  1. Radioactive iodine to slow down your thyroid.
  2. Anti-thyroid medications to prevent it from overproducing hormones.
  3. Beta blockers to reduce a rapid heart rate caused by high thyroid levels.
  4. Surgery to remove the thyroid (this is less common)

Can hypothyroidism cause Down syndrome in pregnancy?

Thyroid antibodies are not a risk factor for pregnancies with Down syndrome.

Is TSH 3.8 normal?

The normal range of TSH levels is 0.4 to 4.0 milli-international units per liter. If you’re already being treated for a thyroid disorder, the normal range is 0.5 to 3.0 milli-international units per liter. A value above the normal range usually indicates that the thyroid is underactive. This indicates hypothyroidism.

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