- analysis TTG
Analysis of m - a blood test for thyroid-stimulating hormone (also known as thyrotrophin).It is produced by the pituitary gland, this hormone, the front of his shares into the blood under the influence of tireotrorpinosvobozhdayuschego hormone, which is produced by the hypothalamus.Thyroid-stimulating hormone stimulates the thyroid gland, so its concentration in the blood directly affects the production of thyroid hormones - triiodothyronine (also known as T3) and thyroxine (also known as T4).
between the content and the content of the blood TSH T3 and T4 hormones, there is not a direct and inverse relationship.Therefore, it is not always immediately clear, how to understand the results of the m.Thus, if the levels of T3 and T4 are highest, then decreases pituitary TSH production and its concentration in the blood is low.Conversely, the amount of TSH is increased at a low level T3, T4, when the thyroid is too weak.Speaking k
For the analysis on TTG donate blood from a vein.Special preparations are not required, but some laboratories are advised to pre for a couple of days before the procedure, do not eat food containing fat, as this makes it difficult to analyze.Typically, the highest level of hormone is three o'clock in the morning, in the morning determined by the high levels of TSH, in the evening - the lowest.Therefore, if it is necessary to evaluate the results of TSH in the dynamics, it is necessary to take into account this feature and try to take the analysis in the same time, otherwise the inevitable errors in the assessment of hormonal status.
When executed TSH blood test, evaluation and interpretation of its values is performed with a physician taking into account age, complaints, general human condition.So at an older age number of TSH higher than in the young.In pregnant women, elevated TSH content.Usually adults rate is in the range of 0.5 to 3.2 mIU / L, but each laboratory has its own reference values defined indicators, therefore, should be guided by laboratory data that is being analyzed.
Elevated levels of TSH may indicate the possibility of such conditions and diseases, as autoimmune thyroiditis - autoimmune thyroiditis, what or congenital abnormalities in thyroid structure, the absence of the thyroid gland after surgery, hypothyroidism, inflammation of the thyroid gland - thyroiditis.Some malignant tumors of breast, lung, pituitary, thyroid.Note that the use of certain antiarrhythmic and antihypertensive drugs can have considerable influence on the increase in TSH.As antipsychotics, antiemetics, diuretics and drugs containing iodine.
Lowering the content of TSH below acceptable standards may be hyperthyroidism, when the thyroid gland produces excessive hormone levels.The same can be various kinds of goiter (toxic, multinode) at the nodes in the thyroid gland.As already noted, during pregnancy.Because drug overdose containing thyroxine, the use of corticosteroids, nifedipine, and others.Stressful situations, malnutrition.From the above it can be concluded that the TSH assay is very efficient for the evaluation of thyroid function, but analysis decrypt and treated doctor can, based on the examination, the patient survey results and other assays in general.