Laboratory test
Complete thyroid panel
Seven blood tests for a broader assessment of thyroid function and the presence of antibodies associated with autoimmune changes.
- Sample: blood
- Preparation: Fasting is not required; discuss medication and biotin with your doctor or laboratory.
Test price
- Sample
- blood
- Preparation
- Fasting is not required; discuss medication and biotin with your doctor or laboratory.
Paymentcash, cards and instalments
Need help choosing?Contact us and we will recommend tests for your circumstances. Contact and locations
Fatigue, weight changes, sensitivity to cold or palpitations may prompt a doctor to check the thyroid. This extended set of blood tests includes hormones and two types of antibodies. It helps clarify thyroid function and possible autoimmune changes.
Who is this panel for
- people whose doctor has recommended more extensive investigations following abnormal basic hormone results
- people with suspected autoimmune thyroid changes
- people with known thyroid disease when a specific question about function or antibodies needs to be answered
- people with symptoms whose doctor is assessing whether the thyroid could be a cause
What the panel contains and shows
- TSH: a pituitary hormone that controls the thyroid and is an important initial indicator of its function.
- T3 and T4: total thyroid hormone concentrations, including hormone bound to transport proteins.
- fT3 and fT4: the free fractions of the hormones.
- Anti-TG and Anti-TPO: antibodies that can support the assessment of autoimmune changes.
Preparation and sample
Hormones and antibodies are measured in venous blood. You do not need to fast for these tests.
Tell us which thyroid medicines you take and whether you use biotin, often found in hair and nail supplements. Biotin can distort some results. Agree the timing of medication and any pause in the supplement with your doctor or laboratory; do not skip medication on your own.
Do I need a basic or extended panel?
For an initial assessment, a narrower set of tests is sufficient for some people, such as the basic thyroid health panel. A broader panel is chosen according to the reason for testing, not simply the number of markers.
If you are unsure which panel to choose, contact us and our team will help you choose.
How to arrange testing
You can come for blood collection without an appointment or referral at one of our branches throughout Croatia (listed on the Contactpage). Prices for all tests and panels are listed in the service price list. You can receive a free consultation with your results.