High thyroid stimulating hormone (TSH) and normal total thyroxine (T4) and total triiodothyronine (T3) levels are considered to be subclinical hypothyroidism, and treatment is required if TSH is greater than 10 mU/L or if accompanied by hyperlipidemia.
Patients with subclinical hypothyroidism have elevated TSH and normal T3 and T4 levels, with no or very mild symptoms, and generally require only periodic review. However, for patients with serum TSH > 10 mU/L combined with hyperlipidemia, which may be accompanied by some symptoms of hypothyroidism such as fear of cold, easy fatigue, constipation, etc., supplementation of levothyroxine sodium tablets is needed.
For pregnant women with TSH higher than normal range and women who are preparing to get pregnant can take levothyroxine sodium under doctor’s guidance to control serum thyrotropin hormone to less than 2.5mU/L, in order to avoid the adverse effects of hypothyroidism on pregnancy and fetal development.
Thyroid stimulating hormone is found to be high, T3 and T4 levels are normal need to go to the hospital, under the guidance of specialists to standardize the treatment.