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CyberpoliThyroid DiseaseFrequently asked questionsDiagnosing Thyroid DisordersWhat is T3?

Frequently asked question: What is T3?

T3 is triiodothyronine. T3 is the active form of thyroid hormone. It has an effect on many organs and processes in your body, such as the metabolism, energy consumption, growth, and brain development. Almost all of the T3 in your bloodstream is bound to proteins (such as TBG); in other words, it does not flow around in the blood in a free form. Purpose: to confirm that the thyroid gland is working too quickly or to test the function of the thyroid if FT4 and TSH analyses did not produce sufficiently clear results.

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What is T4?

T4 is thyroxine. T4 is a hormone that is produced by the thyroid gland. Some of the hormone produced is stored in the th…

How is a thyroid nodule diagnosed as either benign or malignant?

If you feel a nodule in your thyroid gland, further examination is necessary. Blood samples will be taken to test thyroi…

What is a radioactive uptake test?

For a radioactive uptake test, a small amount of radioactively labeled iodine (I-123) or technetium is administered into…

What are the reasons the thyroid gland does not always work as it should?
How is the thyroid gland controlled?
What is congenital hypothyroidism (CH)?
How is Graves' disease diagnosed?
What is TBG?
If benign thyroid nodules are caused by toxic multinodular goiter, what does that mean?
What does thyroid hormone do?

Relevant medical information

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Diagnosing Thyroid Disorders

What are chromosomal and DNA analyses?
What is a 24-hour urine analysis?
What is a heel prick (Guthrie test)?
What is a radioactive iodine uptake with perchlorate discharge test?
What is a radioactive uptake test?
What is a TRH test?
What is an MRI?
What is an ultrasound?
What is Anti-Tg?
What is Anti-TPO?
What is T3?
What is T4?
What is TBG?
What is TBI?
What is Tg?
What is the iodine excretion test?
What is TSH?
What is TSI?
What is ultrasound with needle biopsy?

Other subjects

A Nodule in the Thyroid Gland

Abnormalities of the Thyroid Gland

Diagnosing Thyroid Disorders

Enlarged Thyroid Gland (Goiter)

Hyperthyroidism

Hypothyroidism

Thyroid Gland

Thyroid Hormone

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