FT3

Triiodothyronine

T3 Free

T3 Free (Triiodothyronine) is a hormone produced by the thyroid gland and plays an important role in the body's metabolism. A hormonal imbalance in the thyroid gland can lead to thyroid disorders.

What is T3 Free (Triiodothyronine)?

Free T3 (triiodothyronine) is a measurement of the free triiodothyronine, i.e. the triiodothyronine that is not bound to proteins in the blood. T3 is another hormone produced by the thyroid gland, and it is important for regulating metabolism and energy levels in the body. T3 is the active hormone and is more potent than T4, and it is important for the body to function normally. A too high or too low level of free T3 can indicate thyroid problems such as hyperthyroidism or hypothyroidism.

Why analyze T3 Free (Triiodothyronine)?

Measurement of free T3 is used in conjunction with measurement of T4 Free to diagnose and monitor thyroid problems.

One may need to analyze T3 freely to get a more complete picture of the thyroid gland's hormone production and to be able to investigate and follow up thyroid problems. Free T3 is the active hormone, so it is important to know how much of it is available in the body.

It can be difficult to determine if there is a thyroid problem by just looking at T4 levels because T4 can be bound to proteins and therefore not available to the body. By analyzing both T4 and T3 freely, for example, a doctor can get a more complete picture of the thyroid gland's hormone production and determine if there is a problem.

Another reason to analyze T3 freely is that it can help distinguish between different types of thyroid problems. For example, if the TSH (thyrotropin) level is high, it may indicate hypothyroidism, but if the free T3 level is normal, it may indicate that the problem is in the hypothalamus or pituitary gland instead of the thyroid gland.

Overall, measurement of free T3 provides more accurate and relevant information about thyroid hormone production and can help the doctor make a correct assessment and choose the right treatment.

Note that it is important that a doctor looks at all blood test results and may also consider other factors such as symptoms and medical history to make an accurate assessment.

What can a low value of Free T3 (Triiodothyronine) mean?

A low free T3 value can mean that the thyroid gland does not produce enough triiodothyronine (T3), a hormone that regulates metabolism in the body. This can be caused by an underfunctioning of the thyroid gland, so-called hypothyroidism.

What can a high value of T3 Free (Triiodothyronine) mean?

A high value of free T3 can mean that the thyroid gland is producing too much triiodothyronine (T3), a hormone that regulates metabolism in the body. This can be caused by an overfunctioning of the thyroid gland, so-called hyperthyroidism.

Tests containing the marker T3 Free

Hormone tests

Hormone tests


  • Measures your levels of free T3 (triiodothyronine).
  • Get insight into your thyroid status.
  • Detects disturbance in your thyroid hormones
  • Indication of hyperthyroidism or hypothyroidism.

89 kr

Health checks

Health checks


Health check pregnant
  • Health check for you who are pregnant.
  • Analysis of 28 relevant health markers.
  • Identifies gestational diabetes.
  • Analysis of sex hormones and the thyroid gland.

1 695 kr

Hormonal balance plus
  • Comprehensive health check for hormonal balance.
  • Extended hormone analysis for you as a woman.
  • Get deeper insight into your hormonal levels.

1 595 kr

Hormonal balance
Hormone analysis woman

Hormonal balance

  • Health check for hormonal balance.
  • Hormonal analysis for you as a woman.
  • Get insight into your hormonal levels.

795 kr

Woman
Health check - Female

Woman

  • Health check designed for women.
  • Includes a total of 48 health markers.
  • Gives you information about your overall health.
  • Can identify early signs of health problems.

1 795 kr

Independent health check
Health check on your terms

Independent health check

  • Analysis of 46 health markers.
  • For control of vital health areas.
  • Self-referral without a doctor.

1 495 kr

-10%
Health check Large
  • Health check - Large.
  • Analysis of 52 health markers.
  • Helps you identify outliers.

1 995 kr1 795 kr

-15%
Health check man plus
Comprehensive health check

Health check man plus

  • Comprehensive health check for men.
  • Includes 65 different health tests.
  • Provides insight into your health data.
  • 10 different health areas.

4 595 kr3 895 kr

Health check weight loss
  • Identifies barriers to weight loss.
  • Get increased insight into your metabolism.
  • Health check before or during weight loss.

795 kr

-15%
Woman Plus
Max health check

Woman Plus

  • Extended health screening for women.
  • 65 different health tests are included.
  • Several markers of hormonal balance.

4 595 kr3 895 kr

Standard
Ordinary health check

Standard

  • 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.

795 kr

Thyroid test plus
Thyroid hormone test - Extended

Thyroid test plus

  • 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.

879 kr

Thyroid test
Thyroid hormone test

Thyroid test

  • 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.

349 kr

Sport
Sport performance health check

Sport

  • Health check for those who exercise actively.
  • Analysis of markers that affect your performance.
  • Gives you the conditions to optimize your health.

1 995 kr