Profile of Thyroid Hormones II | Advanced Screening

Possible interpretation of the results

If the test reveals abnormalities, it may be necessary to use additional, other diagnostic methods. For this, you must consult a doctor-specialist, who, taking into account the symptoms, will correctly select the appropriate tests to make an accurate diagnostics.

 The full functional state of the glandTo study, it is recommended to test the following combination of hormones: FT3, FT4 and TSH or Thyroid Hormone Profile II – Advanced Screening:

• Thyroid-stimulating hormone (TSH)Determination is the initial (first) test for the diagnostics of thyroid disease. Even a small change in the concentration of thyroid hormones leads to a pronounced change in the concentration of TSH. Therefore, thyroid-stimulating hormone is a very specific and sensitive parameter for monitoring thyroid function, as well as for detecting and excluding diseases of the hypothalamic-pituitary-thyroid system;
• Free Thyroxine (FT4)Is a biologically active fraction of thyroxine that circulates in the blood, is not related to blood proteins and makes up 4% of total thyroxine - T0.03.
  Free thyroxine (FT4) is produced by the follicular cells of the thyroid gland under the influence of TSH and is regulated by the so-called negative feedback principle. It increases heat production and oxygen consumption by all tissues of the body except the brain, spleen and testicles; Stimulates the synthesis of vitamin A in the liver; Reduces the concentration of cholesterol and triglycerides in the blood; Accelerates protein metabolism; Increases urinary calcium excretion; Activates bone metabolism, but more - bone resorption; Has a positive chrono- and inotropic effect on the heart; Stimulates reticular formation and cortical processes in the central nervous system.
• Free triiodothyronine (FT3) Is a physiologically active form of total T3 (triiodothyronine). The metabolic activity of FT3 is five times greater than that of FT4.

How to prepare for the test?

The test should be taken Fasting In the morning (until about 10 o'clock). Drinking coffee and smoking before testing will seriously affect the results. It is allowed to drink 250 ml of water before testing.