Thyroid function blood test

Thyroid markers when fatigue may not be testosterone alone. Order online. No GP referral.

🇩🇰 Available in Denmark only: the blood sample is taken at a Celto location in Denmark. You need to be in Denmark for the sampling. For a TRT consultation, the first blood test can instead be taken locally in your own country.

€121

Blood tests

You decide what is measured — and how often.

You do not have to wait, stay in the dark, or depend on a local doctor who talks you out of a hormone panel or has already refused to measure it. Testing has become far more accessible and affordable, and you can now take control of exactly what you follow and how often you follow it.

From order to ongoing monitoring

1 · Order & discount

Choose your markers and confirm the order. You then receive a discount code and a link to the laboratory's website.

2 · Clinic visit

Once your purchase is confirmed, you can show up at one of the many partner clinics across Denmark, where the blood sample is taken.

3 · Results

Your results are released digitally within a few days.

4 · Specialist in the EU

No referral and no waiting list. You order the test yourself. A specialist in the EU reads it with you if you want it handled now. Your own doctor can still see the result. A prescription follows the consultation, and only when treatment is indicated.

5 · Monitoring

Repeat the relevant markers at agreed intervals so any change is seen early.

Order your analyses

Select exactly the analyses you want. Nothing is fixed — the choice is entirely yours.

Ready-made packages

Pick a package below, or compose your own panel marker by marker.

Testosterone, SHBG and free T−10% · Celto code: NTRT
Our selected Celto package

Testosterone, SHBG and free T

First male hormone panel: total testosterone, SHBG, calculated free T, LH, FSH, oestradiol, haematocrit, HbA1c and B12. No GP referral.

Included: Total testosterone · SHBG · FSH + LH · Oestradiol · Haematocrit · Vitamin B12 · HbA1c

Package page
€244Select
Health Check 360 blood panel−10% · Celto code: NTRT

Health Check 360 blood panel

Broad check of hormones, metabolism, organs, heart markers and nutrients in one draw. Ordered online, no GP referral.

Package page
€603Select
Advanced cardiovascular blood panel−10% · Celto code: NTRT

Advanced cardiovascular blood panel

Extended heart and vessel markers beyond a standard cholesterol line. Ordered online for a Danish partner-hospital draw. No referral.

Package page
€151Select
Extended androgen blood panel−10% · Celto code: NTRT

Extended androgen blood panel

Androgens beyond a basic testosterone line, for men who need a wider hormone read. Order online. No GP referral.

Package page
€241Select
Hormone blood test for women−10% · Celto code: NTRT

Hormone blood test for women

Female hormone profile including testosterone and SHBG, read on female ranges. Order online. No GP referral.

Package page
€181Select
Hormone blood test for men−10% · Celto code: NTRT

Hormone blood test for men

Male hormone profile for a fuller read than the starter panel. Order online. No GP referral.

Package page
€181Select
Heart and cholesterol blood test−10% · Celto code: NTRT

Heart and cholesterol blood test

Cholesterol and related heart markers. Order online for a Danish partner-hospital draw. No GP referral.

Package page
€181Select
Thyroid function blood test−10% · Celto code: NTRT

Thyroid function blood test

Thyroid markers when fatigue may not be testosterone alone. Order online. No GP referral.

Package page
€121Selected
Liver and kidney blood test−10% · Celto code: NTRT

Liver and kidney blood test

Liver and kidney markers, useful before and during follow-up. Order online. No GP referral.

Package page
€151Select
Immune and inflammation blood test−10% · Celto code: NTRT

Immune and inflammation blood test

Immune and inflammation markers when the story is not hormones alone. Order online. No GP referral.

Package page
€181Select
Vitamin and mineral blood test−10% · Celto code: NTRT

Vitamin and mineral blood test

Vitamins and minerals that can mimic low energy. Order online. No GP referral.

Package page
€241Select

Would you like a phone consultation first?

30 minutes by phone for €49 — help with your questions, your options and guidance on which analyses fit what you want to follow.

Selected: 1

Estimated total: €121

Ordering an analysis is not a diagnosis. Results are interpreted by a physician.

What is Thyroid function blood test used for?

A thyroid package with TSH, total T4, free T4 and T3. Fatigue, weight change, feeling cold and low mood can come from the thyroid as well as from low testosterone, so this package helps separate the two. It can detect both an underactive and an overactive thyroid.

Parameters in Thyroid function blood test (4)

TSH
The pituitary hormone that controls the thyroid. The first marker for thyroid function.
T4 (total)
The main thyroid hormone, total amount.
Free T4
The unbound, active part of T4.
T3
The most active thyroid hormone.

Preparation for Thyroid function blood test

  • Fasting is not required.
  • A morning sample is recommended.

Preparation follows the laboratory's instructions for this package. Celto

What is a venous blood test?

A venous blood test means the sample is taken from a vein, usually in the crook of the elbow. Trained staff insert a thin needle and collect the blood in small vacuum tubes; the draw itself normally takes only a few minutes. A venous sample gives the laboratory enough material to measure many markers at once with standard, quality-controlled methods.

How much blood is drawn?

A standard adult blood tube typically holds about 4–5 ml, and some tube types up to about 9 ml. The total depends on how many tubes the package needs, but even with several tubes it is a small fraction of the 470 ml taken at a normal blood donation.

Sources

  1. WHO guidelines on drawing blood: best practices in phlebotomy (2010)
  2. Barnsley Hospital NHS Foundation Trust – Pathology sample requirements (tube volumes)
  3. NHS Blood and Transplant – After your donation (470 ml per donation)

Questions & answers

What is Thyroid function blood test used for?

A thyroid package with TSH, total T4, free T4 and T3. Fatigue, weight change, feeling cold and low mood can come from the thyroid as well as from low testosterone, so this package helps separate the two. It can detect both an underactive and an overactive thyroid.

How do I prepare for Thyroid function blood test?

Fasting is not required. A morning sample is recommended.

How much blood is taken for Thyroid function blood test?

A standard adult blood tube typically holds about 4–5 ml, and some tube types up to about 9 ml. The total depends on how many tubes the package needs, but even with several tubes it is a small fraction of the 470 ml taken at a normal blood donation.

Do I need a referral for Thyroid function blood test?

No – in Denmark no referral is needed. The package is only available in Denmark, and there you can order it through NordicTRT without a referral from your own doctor. The sample is taken as a normal venous blood test at a Celto location in Denmark.

Can the results of Thyroid function blood test give a diagnosis on their own?

No. Blood values have to be interpreted together with your symptoms, medical history and sometimes repeat measurements. Results outside the reference range should be discussed with a doctor.

What does TSH show?

The pituitary hormone that controls the thyroid. The first marker for thyroid function.

What does T4 (total) show?

The main thyroid hormone, total amount.

What does Free T4 show?

The unbound, active part of T4.

What does T3 show?

The most active thyroid hormone.

Read next

Andropause: is there a male menopause? Signs, causes and blood tests

Is there a male menopause? The difference between andropause and low testosterone, causes and blood tests.