Why Is Thyroid Hormone Elevated in Pregnancy Tests?

Update Date: Source: Network

Elevated thyroxine levels during pregnancy may be due to physiological reasons or pathological reasons. First, it may be caused by physiological reasons. After pregnancy, the hormone levels in the body of pregnant women change, which may lead to elevated thyroxine levels. Physiological reasons generally do not require special treatment measures, and can be relieved and improved after adjustment. Second, if it is caused by pathological reasons, relevant examinations should be carried out under the guidance of a professional doctor. Then, according to the condition, some treatment measures will be taken, generally with medication as the mainstay.

Thyroxine Indicator Overview

Thyroxine is a thyroid hormone containing four iodine atoms, which is often used to measure thyroid function and as a diagnostic basis for acute symptoms of certain diseases. Under normal conditions, human thyroxine levels are maintained within a certain range. When thyroid function is impaired or the body experiences certain acute or chronic diseases, the ability of thyroid follicular cells to secrete thyroxine will be affected, resulting in significant fluctuations in thyroxine levels. By measuring thyroxine levels in the body, combined with the results of other hormones and antibody tests, the patient's physical condition can be judged. Thyroxine is mainly used for the differential diagnosis of hyperthyroidism and hypothyroidism, as well as a monitoring indicator during the treatment of thyroid dysfunction.

Total thyroxine (TT4) testing includes bound thyroxine and free thyroxine (FT4). Bound thyroxine can only exert its physiological effects after being transformed into FT4, so FT4 is more valuable than TT4 for detection.

Clinical Significance

Elevated thyroxine levels can be seen in thyroid diseases such as hyperthyroidism, subacute thyroiditis, painless thyroiditis, thyroxine-binding globulin hypertrophy, and thyrotoxic crisis. T4 is a commonly used indicator for diagnosing hyperthyroidism and can also be used to assess the severity of the condition and monitor the effectiveness of treatment in patients with thyroid dysfunction. In thyroxine testing, two indicators, TT4 and FT4, are involved, and these two indicators can provide more accurate data support for the above-mentioned diseases when combined.