Hypothalamic-pituitary hormone examination
Serum thyrotropin (TSH) unit: milliinternational unit/liter (mIU/L).
RIA method: 4.5 3.6 MIU/L for children, 2- 10 MIU/L for adults, 2.0-7.3 MIU/L for men over 60 years old and 2.0- 16.8 MIU/L for women over 60 years old.
Clinical significance: Decreased, common in hyperthyroidism.
Serum-free triiodothyronine (FT3) unit: PMOL/L.
Radioimmunoassay: 6.0-11.4 ppm mol/L.
Clinical significance: It is the same as triiodothyronine (T3), but FT3 is not affected by thyroid binding protein, which is valuable for the diagnosis of non-thyroid diseases. FT3 is a traditional Chinese medicine method to study low triiodothyronine syndrome and thyroid hormone metabolism.
Serum free thyroxine (FT4) unit: nmol/L.
RIA method:10,3-31,0 nmol/L.
Clinical significance: It is the same as thyroxine, but FT4 is not affected by thyroid binding protein, which has special diagnostic value for thyroid function of pregnant women and oral contraceptives.
note:
1, serum thyroxine (T4) is the main thyroxine in the body, and T4 is increased in hyperthyroidism; In patients with hypothyroidism and subtotal thyroidectomy, that is, endemic goiter, T4 tends to decrease.
2. Serum triiodothyronine (T3) is the thyroid hormone with the highest biological activity in the body. T3 is a sensitive index for the diagnosis of hyperthyroidism.
Please compare it.