Check-up «Thyroid Function Test»

Basic diagnostics for assessing thyroid function. Includes determination of TSH, free T3 and free T4 levels. Used to diagnose and monitor hypothyroidism and hyperthyroidism.

Analysis Description

The thyroid gland produces hormones that regulate the main metabolic processes. Its dysfunction can manifest itself as hypothyroidism (decreased activity) or hyperthyroidism (increased activity). The checkup includes three laboratory indicators that allow you to evaluate the thyroid gland and identify endocrine abnormalities even in the absence of pronounced symptoms. It is used for initial examination, dynamic observation and monitoring of therapy effectiveness.

The lab diagnostics detect

Primary diagnostics of thyroid dysfunction

Confirmation or exclusion of hypo- and hyperthyroidism

Selection and control of hormone replacement therapy dosage

Assessment of hormonal status in menstrual cycle disorders and infertility

Screening in pregnant women and women at risk of endocrine disorders

Indications

Fatigue, decreased performance, drowsiness

Rapid heartbeat, feeling of heat, anxiety

Fluctuations in body weight

Menstrual irregularities, infertility

Hair loss, dry skin

Enlarged thyroid gland (goiter)

Monitoring of thyroid hormone treatment

Pregnancy planning or screening in the first trimester

Analysis Composition and Interpretation

Thyroid stimulating hormone (TSH)

A hormone produced by the pituitary gland that regulates the thyroid gland. Stimulates the synthesis and secretion of thyroid hormones − T3 and T4. TSH level is used as the main marker for assessing thyroid function.

Normal range: 0.4–4.0 mIU/l

Reasons for increased values: primary hypothyroidism, taking lithium drugs, autoimmune thyroiditis
Reasons for decreased values: thyrotoxicosis, overdose of thyroid hormones, pituitary disorders

Free triiodothyronine (T3 free / Tri)

Biologically active form of thyroid hormone. Determined if thyrotoxicosis is suspected, especially if the TSH level is low and T4 is within normal limits.

Normal range: 2.6–5.7 mIU/l

Reasons for increased values: Graves' disease, toxic nodular goiter, thyroid drug overdose
Reasons for decreased values: severe hypothyroidism, chronic systemic diseases

Free thyroxine (T4 free / Thyroxine)

The main hormone of the thyroid gland, reflecting its secretory activity. Used to assess the severity of hypo- or hyperthyroidism and monitor therapy.

Normal range: 9–22 mIU/l

Reasons for increased values: hyperthyroidism, thyroiditis, toxic adenoma
Reasons for decreased values: hypothyroidism, iodine deficiency, postoperative condition

Check-up «Thyroid Function Test»

415 AED