Thyroid index for pregnant women

Women will undergo many examinations throughout their pregnancy, some of which are to check the pregnant woman's own physical condition, and some are to check the development of the fetus in the mother's body. Doctors will judge the condition of the pregnant woman and fetus based on the results of these examinations to ensure the health of the pregnant woman and fetus. Women will also undergo thyroid examinations during pregnancy. The thyroid index of pregnant women is a reference data. Let’s understand the examination items for thyroid examinations of pregnant women.

1. What is the thyroid test for pregnant women?

Thyroid function tests during pregnancy can detect whether the pregnant woman has thyroid diseases during pregnancy, such as clinical hypothyroidism (clinical hypothyroidism), subclinical hypothyroidism (subclinical hypothyroidism), positive thyroid autoantibodies (TPOAb), hyperthyroidism during pregnancy, etc. These diseases have a great impact on pregnant women and fetuses. They can cause serious damage to the fetus's nerves and intelligence, and can also increase the miscarriage rate, pregnancy-induced hypertension, premature birth rate and neonatal mortality rate. Checking the pregnant woman's thyroid gland in early pregnancy can detect thyroid disease in time, so that early treatment can be provided to ensure the health of the pregnant woman and the fetus.

2. What are the thyroid examination items for pregnant women?

1. Clear total triiodothyronine (TT3 )

Triiodothyronine, abbreviated as T3, is produced by thyroid follicular epithelial cells. Testing the total T3 content (TT3) in the blood is a more sensitive indicator for diagnosing hyperthyroidism. Serum total thyroxine (TT4) Thyroxine is referred to as T4 and is entirely produced by the thyroid gland. Testing the total T4 content (TT4) in the blood is a commonly used indicator for judging hyperthyroidism (commonly known as "hyperthyroidism") or hypothyroidism (commonly known as "hypothyroidism"), and it also has application value in assessing the severity of the disease and monitoring the efficacy of the treatment.

2. Thyroid stimulating hormone (TSH)

Thyroid-stimulating hormone, abbreviated as TSH, has the main function of controlling the thyroid gland. It can promote the production of thyroid hormones and the release of produced thyroid hormones into the blood. It also plays an important role in the growth and metabolism of the thyroid gland itself. Changes in serum TSH concentration are a more sensitive indicator of thyroid function. Serum free triiodothyronine (FT3) and serum free thyroxine (FT4) Serum free triiodothyronine is referred to as FT3, and serum free thyroxine is referred to as FT4. Although FT3 accounts for only 0.35% of T3 and FT4 accounts for only 0.025% of T4, they are closely related to the biological effects of thyroid hormones, so they are the preferred indicators for diagnosing clinical hyperthyroidism. Many hospitals have used these two indicators instead of TT3 and TT4 to diagnose hyperthyroidism.