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FT4

Thyroxine (Thyroid gland)

T4 Free

T4 Free is a thyroid hormone that measures the free thyroxine in the blood and plays an important role in body temperature and metabolism. An imbalance may indicate thyroid problems.

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Contents

What is T4 Free Thyroxine?

T4 free thyroxine is a measurement of the free thyroxine, i.e. the thyroxine that is not bound to proteins in the blood. T4 is a thyroid hormone that is important for regulating body temperature and metabolism. Too high or too low a level of T4 can indicate thyroid problems such as hyperthyroidism or hypothyroidism.

Why is T4 Free Thyroxine analyzed?

It can be useful to analyze your levels of free T4 through a blood test as it gives a more accurate picture of how much thyroxine is available for the body to use. When thyroxine is measured in the blood, some of it may be bound to proteins, rendering it useless to the body. Free T4 measures the thyroxine that is not bound to proteins and is therefore more accurate in determining how much thyroxine is available to the body.

Another advantage of measuring free T4 is that it can help distinguish between different types of thyroid problems. For example, if the TSH (thyroid-stimulating hormone) level is high, it may indicate hypothyroidism, but if the free T4 level is normal, it may indicate that the problem is in the hypothalamus or pituitary gland instead of the thyroid gland.

Another reason to measure free T4 is that it can help monitor the treatment of thyroid problems. When a person is being treated with drugs for hypothyroidism or hyperthyroidism, it may be important to measure free T4 to ensure that the treatment is effective and that there is a normal level of thyroxine in the body.

Overall, measurement of free T4 provides more accurate and relevant information about thyroid hormone production and can help the doctor make an accurate diagnosis and choose the right treatment.

What can a low value of T4 Free Thyroxine mean?

A low value of Free T4 (thyroxine) may indicate hypothyroidism, a condition in which the thyroid gland produces too little of this hormone.

What can a high value of T4 Free Thyroxine mean?

A high value of Free T4 (thyroxine) can indicate hyperthyroidism, a condition in which the thyroid gland produces too much of this hormone.

Tests containing the marker T4 Free

Hormone tests

Hormone tests

FT4
Thyroid test T4

T4 (Free thyroxine)

1 marker
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
  • Measures your value of T4 (Free Thyroxine).
  • Thyroid test for analysis of hormone production.
  • Indication for disturbance of thyroid hormone.
  • Blood tests for general health and fitness.

79 kr

Health checks

Health checks

Health check Depression Plus

Depression plus

21 Biomarkers
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
  • Health check for those who feel down or depressed.
  • Analysis of markers that affect your energy and hormones.
  • Gives you the conditions to feel better.

995 kr

Health check - Female

Woman

50 Biomarkers
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
Fasting
Fasting

This test requires you to fast before sampling. Fasting means that you are not allowed to eat or drink anything for at least 10 hours before your scheduled time for sampling. However, a glass of water is fine to drink during the fast. Any medications are taken as usual unless your doctor has given other instructions.

  • Health check designed for women.
  • Includes a total of 50 health markers.
  • Gives you information about your overall health.
  • Can identify early signs of health problems.

1795 kr

Health check - Man

Man

47 Biomarkers
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
Fasting
Fasting

This test requires you to fast before sampling. Fasting means that you are not allowed to eat or drink anything for at least 10 hours before your scheduled time for sampling. However, a glass of water is fine to drink during the fast. Any medications are taken as usual unless your doctor has given other instructions.

  • Health check designed for you as a man.
  • Includes a total of 48 health markers including testosterone.
  • Gives you knowledge about your general state of health.
  • Can identify early signs of health problems.

1695 kr

Ordinary health check

Standard

22 Biomarkers
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
  • Analysis of markers that affect the liver and kidneys.
  • Analysis of markers that affect the heart and blood vessels.
  • Control of the risk of possible diabetes.

495 kr

Thyroid hormone test - Extended

Thyroid test plus

5 Biomarkers
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
  • Measures your levels of the thyroid hormones T3, T4 and TSH.
  • Analysis of TPO antibodies (thyroperoxidase antibodies).
  • Analysis of TRAK thyroid-stimulating hormone receptor antibodies.

645 kr

Thyroid hormone test

Thyroid test

3 Biomarkers
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
  • Thyroid test that measures three different thyroid hormones.
  • Analysis of the thyroid hormones T3, T4 and TSH.
  • Gives you insight into a possible imbalance of your thyroid hormones.
  • Identifies whether you have an underactive or overactive thyroid.

159 kr

Sport performance health check

Sport

37 Biomarkers
Blood sample
How does the blood test take place?
Sampling for this test is done via a venous blood sample. The sample is usually taken from a vein in the crook of the elbow and is performed by trained healthcare professionals. How much blood you are allowed to give depends on the number of health markers to be analyzed. The sampling usually takes a few minutes.
  • Health check for those who exercise actively.
  • Analysis of markers that affect your performance.
  • Gives you the conditions to optimize your health.

1595 kr