2024年10月9日 · Normal thyroid-stimulating hormone (TSH) levels generally fall between 0.4 and 4.5 milliunits per liter (mU/L). TSH levels higher than 4.5 mU/L usually indicate an underactive thyroid (hypothyroidism), and low TSH levels—below 0.4 mU/L—indicate an overactive thyroid (hyperthyroidism).

2023年12月22日 · The thyroid-stimulating hormone (TSH) test measures the amount of TSH in the blood to convey how well a person’s thyroid functions. Normal levels are typically 0.4 to 4.0 milliunits per...

Thyroid-stimulating hormone (TSH) triggers your thyroid to release its hormones. High TSH levels usually indicate hypothyroidism and low levels, hyperthyroidism.

2023年3月22日 · Thyroid level tests, including the TSH test, can determine if your thyroid is producing too much or too little thyroid hormone. Here’s what the results mean.

2018年5月7日 · Find out all you need to know about TSH levels (including normal, high or low thyroid stimulating hormone levels). Read what doctors say about optimal TSH levels and how they affect thyroid hormones T4 and T3. Including useful chart of TSH, FT4, FT3 levels.

2025年2月11日 · Thyroid stimulating hormone, or TSH, is produced by the pituitary gland and helps regulate thyroid hormone levels in the body. Learn the high TSH symptoms, such as fatigue and dry skin, and what elevated thyroid levels mean.

2023年9月5日 · A high TSH level indicates that the thyroid gland is not making enough thyroid hormone (primary hypothyroidism). The opposite situation, in which the TSH level is low, usually indicates that the thyroid is producing too much thyroid hormone (hyperthyroidism).

2024年12月14日 · Based on how high or low the different values are—including key hormones such as TSH and T4—the lab can determine which type of thyroid disease you have (hypothyroidism vs. hyperthyroidism) and narrow the possible causes.

By learning to interpret thyroid levels and understanding what they mean for your health. Whether you’re tracking test results or managing a thyroid condition, find below your comprehensive guide to understanding thyroid hormone levels.

When the thyroid hormone levels rise above normal, the ‘thermostat’ senses this and the pituitary stops secreting TSH so that the thyroid makes less T4. TSH is also called thyrotropin. What are thyroid function tests? The usual blood tests done for …