Type
Blood Testing
Biomarkers
8
Duration
10 min
Results
48 hours
Core thyroid function panel measuring TSH, free T3, and free T4. Screens for both hypothyroidism and hyperthyroidism by assessing pituitary signalling and circulating active hormone levels. At 80 PLN (~18.50 EUR) plus collection fee, this covers the essential thyroid markers at a price well below German equivalents.
This three-marker thyroid panel provides a complete functional assessment of the hypothalamic-pituitary-thyroid axis. TSH (thyroid-stimulating hormone) is secreted by the anterior pituitary and is the most sensitive single marker for thyroid dysfunction. Elevated TSH indicates primary hypothyroidism — the thyroid gland is underperforming and the pituitary is compensating by producing more stimulation. Suppressed TSH indicates hyperthyroidism — excess thyroid hormone feeds back to shut down pituitary TSH production. Free T3 (triiodothyronine) and free T4 (thyroxine) measure the biologically active, unbound fractions of circulating thyroid hormones. T4 is the predominant secretory product of the thyroid gland and serves as a prohormone, converted to the more metabolically active T3 in peripheral tissues. Measuring both free hormones distinguishes between different patterns of thyroid dysfunction — for example, isolated T3 thyrotoxicosis (elevated T3 with normal T4) is common in early Graves disease and toxic nodular goitre. Subclinical thyroid disease (abnormal TSH with normal free hormones) is found in 4-10% of the general population and is more prevalent in women and older adults. Symptoms are often subtle — fatigue, weight changes, cold intolerance, dry skin, constipation for hypothyroidism; anxiety, tremor, heat intolerance, palpitations for hyperthyroidism. For patients with a family history of autoimmune thyroid disease or those with borderline results, InterLab offers the extended thyroid panel (Pakiet Tarczyca Rozszerzony) at 170 PLN, which adds anti-TPO and anti-TG antibodies for autoimmune screening.
Key Details
- Biomarkers
- 3
- Results
- 1-2 days
- Price
- 80 PLN (~€19)
Who Is This For?
Thyroid screening, fatigue investigation, weight changes, family history of thyroid disease
What's Included
Preparation Required
No fasting required. Morning draw preferred as TSH follows a circadian rhythm with peak levels in early morning.
Panel Categories
Biomarkers Tested
8The active form of thyroid hormone responsible for regulating metabolism, energy, and body temperature. Free T3 is converted from T4 in tissues and is three to four times more potent than T4.
The unbound, active form of the main thyroid hormone T4. Free T4 directly reflects thyroid gland output and is used alongside TSH to diagnose and monitor thyroid disorders.
Free triiodothyronine; high levels indicate hyperthyroidism, low levels hypothyroidism.
Free thyroxine; high levels indicate hyperthyroidism, low levels hypothyroidism.
A group of proteins in blood including antibodies (immunoglobulins), transport proteins, and enzymes. Elevated globulin can indicate chronic infection, inflammation, or blood cancers. Calculated by subtracting albumin from total protein.
An inactive form of T3 produced when the body converts T4. Elevated reverse T3 can occur during illness, stress, or caloric restriction and may indicate impaired thyroid hormone activation despite normal TSH levels.
Antibodies against thyroid peroxidase, an enzyme essential for thyroid hormone production. Positive TPO antibodies indicate autoimmune thyroid disease, most commonly Hashimoto's thyroiditis, even before symptoms or TSH changes appear.
The primary screening test for thyroid function. TSH is produced by the pituitary gland to regulate thyroid hormone production. High TSH indicates an underactive thyroid (hypothyroidism), while low TSH suggests an overactive thyroid (hyperthyroidism).
80 PLN for basic thyroid panel (TSH + fT3 + fT4). Extended panel with antibodies: 170 PLN. A 5 PLN per-visit blood collection fee applies.
- Category
- Diagnostic
- Sample Type
- Blood (venous draw)
- Duration
- 10 min
- Results
- 48 hours