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Thyroid Profile

Type

Blood Testing

Biomarkers

8

Duration

15 min

A focused thyroid blood panel measuring the key markers used to assess thyroid gland function, screen for hypothyroidism and hyperthyroidism, and guide treatment decisions for existing thyroid conditions.

Thyroid dysfunction is one of the most common endocrine disorders, affecting an estimated 5-10% of adults — with women disproportionately affected. The Thyroid Profile at United Medical Clinic measures the core markers that clinicians use to evaluate thyroid health: TSH (the pituitary signal that drives the thyroid), free T4 and free T3 (the active hormones), and thyroid antibodies where clinically indicated. TSH alone is often used as a screening test, but it can miss early or subclinical thyroid dysfunction. By including the downstream hormones and antibody markers, this panel provides a more complete picture of thyroid function and can help distinguish between primary thyroid disease, autoimmune thyroiditis (Hashimoto's or Graves' disease), and secondary causes of thyroid dysfunction. Symptoms of thyroid imbalance are notoriously non-specific — fatigue, weight changes, mood disturbance, hair thinning, temperature sensitivity, and menstrual irregularity all overlap with dozens of other conditions. This panel provides objective data to confirm or rule out a thyroid contribution. At EUR 130, it is an accessible entry point for thyroid investigation and a useful monitoring tool for patients already on thyroid medication who want to check their levels outside of their usual healthcare system while travelling.

Key Details

Biomarkers
4+
Focus
Thyroid function
Turnaround
1-3 days

Who Is This For?

Thyroid screening, fatigue investigation, weight change assessment, medication monitoring, family history of thyroid disease

What's Included

Venous blood draw
TSH
Free T4
Free T3
Thyroid antibodies (where indicated)
Results review

Panel Categories

Thyroid Panel

Biomarkers Tested

8
FT3 pg/mL

Free triiodothyronine; high levels indicate hyperthyroidism, low levels hypothyroidism.

FT4 ng/dL

Free thyroxine; high levels indicate hyperthyroidism, low levels hypothyroidism.

Free T3 (Triiodothyronine) pg/mL

The 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.

Free T4 (Thyroxine) ng/dL

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.

Globulin g/dL

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.

Reverse T3 (rT3) ng/dL

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.

TSH (Thyroid-Stimulating Hormone) mIU/L

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).

Thyroid Peroxidase Antibodies (TPO) IU/mL

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.

Compare Blood Testing in Portugal →
Price
€130.00
Cheapest in Lisbon
Category
Diagnostic
Duration
15 min

United Medical Clinic

Lisbon private medical clinic offering comprehensive health checkups, blood testing, and specialist consultations for expats and medical tourists, with multilingual staff and published self-pay pricing.

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€130.00