The thyroid stimulating hormone (TSH) test measures the amount of TSH in the blood. The results convey how well the thyroid is functioning. Doctors can use TSH test results to . The normal range for TSH is between mU/l and mU/l. 1 A high TSH suggests your thyroid is underactive (hypothyroid) and not doing its job of producing enough thyroid hormone. A low TSH suggests your thyroid is overactive (hyperthyroid) .
TSH levels are measured in ranges. In general, the normal reference range for TSH levels is to milli-international units per liter (mIU/L) of blood. A TSH reading in this range indicates the thyroid gland is functioning normally. However, doctors do not all agree on the precise TSH range of a normal-functioning thyroid gland. Normal TSH levels for the average adult range from ‑ mIU/L (milli-international units per liter) (3). However, many organizations agree that a reading of or less is truly ideal for normal thyroid levels, with anything – mIU/L considered “at risk”.
TSH levels typically fall between and milliunits per liter (mU/L), according to the American Thyroid Association. Ranges between laboratories will vary with the upper limit being between 4. Thyroid-stimulating hormone (TSH) is produced by your pituitary gland, which helps regulate hormone production and metabolism throughout your body. TSH helps your thyroid gland make other hormones.